Lesson 6 Reteach Write Linear Equations Answers

Chapter 2: Linear Functions Chapter one was a window that gave us a peek into the entire course. If they do, find the equation of a trend line. Studyres contains millions of educational documents, questions and answers, notes about the course, tutoring questions, cards and course recommendations that will help you learn and learn. A gas station store sells tea for $0. 5 Reteach Chapter Resources 2-13 Reteach. Solve the system by elimination. This chapter sets them up to be able to write and graph a system of linear equations in order to examine its. Write a system of equations. ¥ Lesson 7-3 Write and graph inequalities. Along with you textbook, daily homework, and class notes, the completed Reteach and Skills Practice Workbook can help you in. Start at (2, 5). nonproportional; the line does not include Sample answers: 3 5 = 6 10, 3x + 5y = 10, 10x − 6y = −2 12. Chapter 6: Systems of Equations and Inequalities. Write a linear equation that describes the problem. 7 + −−n 3 = 10. y = 10 + 6x y = -x - 4 y = 6x Write and solve a system of equations that represents each situation. This is a lesson designed to strengthen fluency solving equations and inequalities with fraction coeff Plan your 60-minute lesson in Math with helpful tips from Grant Harris My students can solve two-step equations with integers but not fraction coefficients. Chapter 6 : Solving and Graphing Linear Inequalities 6. algebra parentheses. Write a justification for each step. 06s 450, where s represents the total sales. The solution to the system of equations is The solution to the system of equations is Check your answer. Draw a line through the two points. $$4\cdot 5-3$$ And then we calculate the answer. Reteach R5 Grade 2 Lesson 1. 7th Grade Pre Algebra · Pre Algebra Unit 1 Lesson 7. LESSON Write the correct answer. When you come to a Write an Observation screen, stop and write the answer to the question on your worksheet. 4 - All Students: Consider allowing time in this activity for student discussions of their observations. Begin by transforming both sides of the equation into a simpler form. Multiply with the Distributive Property - Lesson 2. This includes school websites and teacher pages on school websites. Simplify further by using the inverse of multiplication or division. This unit explores the principles and properties they'll need to understand in order to handle multi-step equations. 4 Label each page with a lesson number and title. { y " x ! 8 5x # 2y ! 9!3, 6 " !!1, 7 "You may need to solve one of the equations for a variable before solving with substitution. Sometimes, you want to know when one expression is greater or less than another. Interpret graphs. The geometry of linear equations The fundamental problem of linear algebra is to solve n linear equations in n unknowns; for example: 2x − y = 0 −x + 2y = 3. An equation is a statement that two expressions are equal. the graph of this equation in the two. The following process will work for. If it is Tuesday, then play practice is at 6:00. y 2x 1 and y 2x 2 are parallel lines since both equations have a slope of 2. ordered pairs does not represent a linear function. { y 2x 2 y 2x 3 7. y = x − 3 b. Algebra Function Worksheets (pdfs) with answer keys on domain/range, 1 to 1, evaluating, composition of functions and more. org Activities for Algebra write a paragraph or poem about the equation operation you find to Evaluate throughout the lesson. 126 L14: Equivalent Linear Expressions Equivalent Linear Expressions Lesson 14 Part 1: Introduction In previous years you learned how to write expressions in many different ways. When x increases, y increases twice as fast, so we need 2x. The following lessons were created as supplements for use with Prentice Hall's "Pre-Algebra; California Edition" by Davison, Landau, McCracken, and Thompson shown below. Step 2 Then perform the stretch. First rewrite the equation so both variables are on the same side of. She gave seven to her sister. 8th Grade Lesson Plans - The activities included in this section are models for lesson plans that exemplify best practice teaching in mathematics. Reteaching 5-1 Solving Systems by Graphing x y 6 4 2 46 2 4 6 4 2 6 x y 6 4 2 246 2 4 6 4 2 6 x y 6 4 2 246 2 4 6 4 2 6 000200010271713792_CH05_L01. The most accurate way to solve a system of equations is to graph the equations to see where they intersect. The distance in feet traveled by a falling object is found by the formula d = 16t 2 where d is the distance in feet and t is the time in seconds. No matter what value of "x", f(x) is always equal to some constant value. Locate the x-axis and estimate 3 units forward. Write the equation in point-slope form from Exercise 16. Guided Lesson - We work on equivalent expressions, using area and perimeter. 50 (3 times 2. This is a lesson designed to strengthen fluency solving equations and inequalities with fraction coeff Plan your 60-minute lesson in Math with helpful tips from Grant Harris My students can solve two-step equations with integers but not fraction coefficients. Linear Equations and Inequalities Finding slope from a graph Finding slope from two points Finding slope from an equation Graphing lines using slope-intercept form Graphing lines using standard form Writing linear equations Graphing absolute value equations Graphing linear inequalities. Next, look at , and see that 6 will to into 18 three (3) times. Solve Linear Equations 8. Write an equation in point-slope form using the slope you found in 3a and the. 00 (2 times 2. The table to the right shows the amount of money Betty has in her bank account. T G wM7adSej HwEi Htoh y KIBnOfniRnHigt uei TAql6g beTborVa6 r18. slope = −4, y-intercept = 1. 4 7} 17 14. Note: The slopes of parallel vertical lines are undefined. All the points on the line are solutions of the equation. Draw a line through same coordinate grid. the completed Skills Practice Workbookcan help you review for quizzes and tests. What a mess!. Use the equation to find the height of the tomato plant 6 weeks after it was planted. Write a linear function for. 5 Linear Equations in All Forms 6. to the term −2, and that they have, in general, transformed the equation correctly. Answer Key Lesson 6. Slope-Intercept Form. Grade 7 AF 4. —X + 11 20 —x 3y — 34. equation:_____ 4. a) slope of 1/5 and y-intercept is (0, -3) b) slope of -2 and y-intercept is (0, 7) y= 1 5 x−3 y=−2x+7 EXAMPLE 6: GRAPHING LINEAR EQUATIONS. 10 + 4 = 14 The solution is 14. The cost for a certain music plan is $9. Slope Intercept Form y=mx+b, Point Slope & Standard Form, Equation of Line, Parallel & Perpendicular - Duration: 48:59. Interpret the solution. Solving More Complicated Linear Equations with Integer Coefficients When solving equations involving fractions, it's usually easiest to clear fractions first by multiplying by the least common denominator of all the fractions involved. First rewrite the equation so both variables are on the same side of the equation. passes through (4, 2), slope =. 8th Math Unit 5/6 Information Linear Functions & Linear Models CRCT Domain & Weight: Algebra & Functions 20% Flip Book for Unit 5/6 Unit 5/6 Prerequisites: Unit 5/6 Unit Length: Approximately 25 days Checklist for Unit 5/6 Study Guide for Unit 5/6 Study Guide KEY for Unit 5/6 Calculators should be used on all standards. combine to form the linear term of the trinomial. Lesson 6: Ratio, Proportion, Units, and Percentage, part 1 SAT Math lesson plans for teachers, by teachers Lesson 1: Linear Equations, Linear Inequalities, and Linear Functions in Context 1. Revenue, R $75 per (in dollars) = night ⋅ Number of nights, x c. b) Use your equation to find the price of the meal without tax or tip. 5 —3 and a A line has a slope of y-intercept of 6. { y 2x 2 y 2x 3 7. Reteach 6-2 Solving Systems by Substitution (continued) LESSON Solve each system by substitution. nonproportional; the line does not include MODULE 5 Writing Linear Equations LESSON 5-1. KY Program of Studies HS-AT-S-EI1 Students will write equivalent forms of equations, inequalities and systems of equations and inequalities and solve them with fluency — mentally or. A system of equations is a collection of two or more equations with the same set of unknowns. GRADE 8 MATH: EXPRESSIONS & EQUATIONS UNIT OVERVIEW This unit builds directly from prior work on proportional reasoning in 6th and 7th grades, and extends the ideas more formally into the realm of algebra. The school store sells a binder for $5 and a notebook for $4. Step 1 Use the Addition or Subtraction Property of Equality to get the term with a variable alone on one side of the equation. Then just draw a line that passes through both of these points. Lesson 3 – Linear Equations and Functions Mini-Lesson Page 102 Section 3. Solving More Complicated Linear Equations with Integer Coefficients When solving equations involving fractions, it's usually easiest to clear fractions first by multiplying by the least common denominator of all the fractions involved. Write Equations When writing equations, use variables to represent the unspecified numbers or measures. Write a system of equations and solve it find the number. Find the slope of this line. Write each of the following statements using symbolic language. Linear Equations and Inequalities in Two Variables Name_____ MULTIPLE CHOICE. { 3 x # 2 y ! 9 #6x " 4y ! 1 infinitely many solutions no solution no solution When solving equations in one variable, it is possible to have one solution, no solutions, or infinitely many solutions. Select your options in the form below and click on the 'Make Worksheet' button. Writing Linear Equations from Situations and Graphs Reteach You will be asked to find the slope (m) and the y-intercept (b) of graphs of linear equations in the form y = mx b. Take a look at this problem. Goal 8: Recognize slope-intercept form (6-2, done previously), standard form (6-3), and point-slope form (6-4); write a linear equation in any of these forms Goal 9: Write an equation for a line given its slope and at least one point on the line (6-4) Goal 10: Write an equation for a line given at least two points on the line (6-4). y = 6 − x 15. Some of the worksheets displayed are Unit 4 analyze and graph linear equations functions and, Lesson reteach writing linear functions, Graphing linear equations work answer key, Writing linear equations, Linear equations work, Lesson 4 homework practice, Multi step. If it is Tuesday, then play practice is at 6:00. Lesson 6 Extra Practice. 1 Lesson WWhat You Will Learnhat You Will Learn Check solutions of systems of linear equations. Monica had some cookies. To check the answer, substitute 2 for x and 7 for y in the original equations. To do this make use of known formulas and often the figure sketched in the previous step can be used to determine the equation. the number of grams in one kilogram 4. Recognize that inequalities of the form or have infinitely many solutions; represent solutions of such inequalities on number line diagrams. (a) Write down an expression for the perimeter of the rectangle, giving your answer in its simplest form. How many did each girl sell if the total number of T-shirts sold was 27? Elaine Kim 4. Then, she divided the remainder into two halves, and she still had five cookies left. a polynomial with three terms. Remind students to perform the same operation on both sides of the equation. LESSON Date Modeling Linear Relationships Reteach Class Linear equations and their graphs can sometimes be used to model real-world situations. rt? What kind of answer at nu"rvrloOrs ^ArL I rtasonable 7. 5 Reteach Different Ways to Write Numbers You can write numbers in different ways. 4x 2 17 2 4x 4x 2 20 2 4x Subtract 4x from both sides. Locate the y-intercept on the graph and plot the point. To the TeacherThese worksheets are the same ones found in the Chapter Resource Masters for Glencoe Math Connects, Course 1. This is one reason why linear algebra is its own branch of mathematics. Chapter 7 Resource Masters The Chapter 7 Resource Masters includes the core materials needed for Chapter 7. Graphing Linear Equations The graph of a linear equation in two variables is a line (that's why they call it linear ). • Find the slope and y-intercept of a line. Write a linear function for. Lesson Notes. Then identify the slope and the y-intercept. • Graph a system of linear equations on the coordinate plane and. • Lesson 7-1 Solve systems of linear equations by graphing. Math Vids offers free math help, free math videos, and free math help online for homework with topics ranging from algebra and geometry to calculus and college math. Oh boy, here we go. Kerry biked 4 miles more than Luke. & t-Mfo in in+*lrat*,vs Parl onlu\g What do llos knoifl? What do you want to find or. Write the equation in point-slope form from Exercise 16. Name Estimate with Whole Numbers You can use compatible numbers to estimate a quotient. Solving one-step equations may sound simple, but for many students they're a challenge. the rational numbers greater than 6 2. So that we attempted to obtain some good 18 matching equations and graphs worksheet answers graphic for you. 2- Writing Linear Equations from a Table Lesson 5. Write an expression and find the total shaded area in each square. Write the equation in 3 x standard form. Your yard is a mess, and you decide to hire a landscaper. No account is necessary to read the comments, but you will need to create a free account in order to contribute. Explain to the students that the equation describes the pattern using numbers and can be used to calculate the number of squares that a specific step will have. 9 Review Answer Key. evaluate math problems. Reteaching Master Nome Practice Master practice 10-4 Adding Mixed Numbers Randy talks on the telephone hours, then the Internet HOW he on the 10-4 Step a. LESSON 1-1 Find the opposite of this number. Lesson Resources: 5. m 2 6 5 21. Chapter 6 Systems of Equations and Inequalities Lesson 6-5 Solving Linear Inequalities, 6 CD), (9 DVD, 2 CD) 12. Visit the post for more. Reteach Solving Linear Equations and Inequalities (continued) Name Date Class 2-1 LESSON The symbol means that –3 is included in the graph. Nov 29, Thursday Content Indicator Quiz 4-1 through 4-3 Linear Equations Real World Examples. One-Step Equations with Rational Coefficients Reteach to do before you write the answer. • All linear relationships have a constant rate of change. Lesson 3 Reteach Write Two-Step Equations Some verbal sentences translate into two-step equations. State the slope and the y-intercept for the graph of each equation. What is the equation of. Solve the system by elimination. Algebra 1 graphing on the coordinate plane worksheets, writing two step equations glenco workbook answers, online polynomial equation factor, dividing cacalater, multiplication tables for Z/8, solve system of equations with 3 variables online, summation ellipses on TI 89. The linear function. Given the equation 2x+5y=8, with the coefficients increasing by 3 each time, create linear systems that are similar using equations such as 3x+4y=5 or 4x+6y=8. The second number is 6 less than the first. 4 Label each page with a lesson number and title. 8th Grade Lesson Plans - The activities included in this section are models for lesson plans that exemplify best practice teaching in mathematics. Answer Write the equation of a line with slope and y-intercept —10. org Activities for Algebra write a paragraph or poem about the equation operation you find to Evaluate throughout the lesson. 6 3 6 Two Step Equation Worksheet Answer Key Printable worksheets and lessons. Evaluate the expression when x=5. Graphing Linear Equations Worksheet Answer Key Drawing Lines in the Sand (On a Graph, We Mean) Solve the following linear equations by graphing. The slope can be found by selecting two points on the line, determining the vertical rise and the horizontal run between the points and dividing them. Rate of Change Find rates of change. She knew it could be modeled by a linear function. of equations to solve real-world problems? Solving Systems of Linear Equations 8 Get immediate feedback and help as you work through practice sets. Lesson 6: Linear Equations: Real World Applications Mini-Lesson Page 108 YOU TRY 1. 7 - Activities for teaching Expressions & Equations, including Expressions & Equations worksheets, Expressions & Equations practice problems, questions, assessments, quizzes, tests, lesson plans - aligned to Common Core and state standards - Goalbook Pathways. reteaching activity. 1 Solving Linear Equations with One Variable Explain why each pair of equations is equivalent or not equivalent. 10 + 4 = 14 The solution is 14. Solve systems of linear equations by graphing. Slope-Intercept Form Determine slopes and y-intercepts of lines. 4 - All Students: Consider allowing time in this activity for student discussions of their observations. Then write it in exponential form. In this problem solving strategies worksheet, students solve 2 word problems where they use models and the "solve a simpler problem strategy" to help them solve the problem. The multiplicative inverse of a fraction is a fraction in which the numerator and denominator have switched positions. Reteach R5 Grade 2 Lesson 1. 5 Point-Slope Form of a Linear Equation 5. In this unit, we are going to reverse that process and write equations to match a graph or a word problem. , with graphs), focusing on pairs of linear equations in two variables. Lesson 3 – Linear Equations in x Essential Questions: Concept Development: We want to define a linear equation in x. This means the price of two bags is $5. Animated Math Go digital with your write-in student edition, accessible on any device. Take a look at this problem. Solving Linear Equations Worksheet I Show work to justify your answer. This is a lesson designed to strengthen fluency solving equations and inequalities with fraction coeff Plan your 60-minute lesson in Math with helpful tips from Grant Harris My students can solve two-step equations with integers but not fraction coefficients. About SmartGraphs. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. 3 Reteaching with Practice For use with pages 19-24 LESSON NAME _____ DATE _____ Lesson 1. Form an equation that will relate known quantities to the unknown quantities. This Algebra Worksheet may be printed, downloaded or saved and used in your classroom, home school, or other educational environment to help someone learn math. x - 4 = 10 Solution. 2 Graph Linear Equations A1. Lesson 6: Ratio, Proportion, Units, and Percentage, part 1 SAT Math lesson plans for teachers, by teachers Lesson 1: Linear Equations, Linear Inequalities, and Linear Functions in Context 1. Using what you know about the words. From Linear Pattern to Equation. (Lesson 3-1) Now Determine the number of solutions a system of linear equations has. This guide represents a recommended time line and sequence to be used voluntarily by teachers for planning purposes. By looking at the bar diagram, you can see that you will have to add to find x. 6 Chapter 1 — Equations and Inequalities The two sides of any linear equation represent two lines on a graph, and the x coordinate of the intersection point is the solution to the equation. Algebra Topics Integers Rational Numbers Real Numbers Absolute Value Algebraic Expressions Equations Polynomials Monomials Linear Equations. 2 Worksheet is suitable for 6th - 8th Grade. Lesson 4 reteach the percent equation writing linear equations from situations and graphs reteach chapter 6 answers practice 1 7 Lesson 4 Reteach The Percent Equation Writing Linear Equations From Situations And Graphs Reteach Chapter 6 Answers Practice 1 7 Chapter 2 Answers Practice 1 Practice 6 2 Slope Intercept Form Document Lesson 1 Reteach Constant Rate Of…. This is very good thinking, and will serve you well – congratulations! Right now, though, it will be be temporarily a bit frustrating to have to go through the slower step of writing the algebra equation, but please stick with it. Solve each equation.  Student work: 1 2 (4𝑥+6)−2=−(5𝑥+9) 2𝑥+3−2=−5𝑥−9 Make sure that students do not distribute the factor 1 2. 6 Digit Subtraction Equations; Integer Addition Equations. Warm-Up What is a linear function?. This is a linear equation. First rewrite the equation so both variables are on the same side of the equation. n__ 6 3 10 Given equation 2. Summer content playlist: 12 must-have resources for educators. Oh boy, here we go. 2x - 4 = 10 Solution. Sentence Equation Four more than three times a number is 19. Go through a couple of examples with the students, then have them complete some practice problems or a worksheet. Never; the quadratic model reaches a maximum of about 45 cents, so it is useful for only a limited number of years. Reteach 6-5 Solving Linear Inequalities LESSON The boundary lines for each inequality are graphed below. Welcome to MathHomeworkAnswers. To summarize how to write a linear equation using the slope-interception form you Identify the slope, m. They are called multi-step equations. Solve and check the following equations. 108 Lesson 3. LESSON 4 SOLVING BASIC EQUATIONS 31 Defines an equation and explains the four basic operations that can be performed on an equation to solve it LESSON 5 SOLVING MULTI-STEP EQUATIONS 39 Explains how to solve equations that require more than one step LESSON 6 SOLVING EQUATIONS WITH VARIABLES ON 45 BOTH SIDES OF THE EQUATION. Interpret the solution. 9x − 15x = 2. 6 - Notes: Solving algebraic proportions. The online math tests and quizzes about solving linear equations, involving brackets, fractions and decimals. , with graphs), focusing on pairs of linear equations in two variables. 6 3 6 Two Step Equation Worksheet Answer Key Printable worksheets and lessons. 50 per refill. Addition and Subtraction Properties of Equality: Let , , and represent algebraic expressions. Step 1 Use the Addition or Subtraction Property of Equality to get the term with a variable alone on one side of the equation. 5t 2 17 5x 2 5 2x 10 4 2 2x 2 Reteaching 3-5 Solving Two-Step Equations There are the same number of marbles on each side and the same number of marbles in each box. 5x – 3 = 2x. That term therefore becomes 9x. Scroll through the Observations using ~ ( | to review, if necessary). reteaching activity. Step 1 y. Graphing Linear Equations Write the correct answer. Take a look at this problem. y 5x 2 5x 5x 5x y 2 Conclusion: Because the function can be written in standard form, (A 5, B 1, C 2), the function is a linear function. Lesson 6: Linear Equations: Real World Applications Mini-Lesson Page 108 YOU TRY 1. VOLUME To find the volume of a rectangular box you multiply the length times the width times the height. What are the coordinates of the point where the graph of the equation B c D 3x — 3 crosses the y-axis? (3,0) (—3,0) c 3. Explain to the students that the equation describes the pattern using numbers and can be used to calculate the number of squares that a specific step will have. Lesson 6 Reteach Write Linear Equations Example Write an equation in point-slope form and slope-intercept form for a line that passes through (2, -5) and has a slope. Return contact and math curriculum night form. You may like to read some of the things you can do with lines:. ordered pairs does not represent a linear function. Discuss the domain of each side. When it comes to graphing linear equations, there are a few simple ways to do it. (Lesson 3-1) Now Determine the number of solutions a system of linear equations has. Then identify the slope and the y-intercept. This is a linear equation. Solutions to a System of Equations - a set of values for the variables that makes all the equations true. The domain of a linear equation is the set of all x. 2 Unfold and cut four rows from left side of each sheet, from the top to the crease. 236 Chapter 5 Solving Systems of Linear Equations 5. Textbook detail HMH Algebra 1 Lesson 1: 6. slope = _6 5, y-intercept = 82. The point of intersection is the solution. 2 Writing Linear Equations Given the Slope and a Point 5. The most accurate way to solve a system of equations is to graph the equations to see where they intersect. for both foldable provide the following: definitions of the concept; examples worked algebraically; visual evidence such as graphs. 10 20 Write two mixed numbers that have a sum of 3. Graphing and Writing Linear Equations Graphing Linear Equations by Table Method Graphing Lines - Lesson Table Method. The best method to use depends on the forms of the given equations and how precise the solution should be. • Lesson 7-5 Solve systems of linear inequalities by graphing. You can solve equations that require more than two steps. solve for x 4: 6. ordered pairs does not represent a linear function. Write the equation in 3 x standard form. See more ideas about Math coach, Math teacher and High school maths. How to cut ANY image with Cricut - How to upload your own files for cut | Cricut VS Silhouette - Duration: 15:12. 50 more than a spaghetti. trinomial 4. 217 220 Simplify. To the TeacherThese worksheets are the same ones found in the Chapter Resource Masters for Glencoe Math Connects, Course 1. Some of the worksheets displayed are Unit 4 analyze and graph linear equations functions and, Lesson reteach writing linear functions, Graphing linear equations work answer key, Writing linear equations, Linear equations work, Lesson 4 homework practice, Multi step. Determine whether y y = 6 to each side. Draw a line through same coordinate grid. Graphing Linear Equations Worksheet Answer Key Drawing Lines in the Sand (On a Graph, We Mean) Solve the following linear equations by graphing. Give one example of an infinite amount. Reteach 6-4 Solving Special Systems LESSON Solve each system of linear equations algebraically. It is also sometimes called the average rate of change. The slope can be found by selecting two points on the line, determining the vertical rise and the horizontal run between the points and dividing them. A useful problem-solving strategy was presented for use with these equations and two examples were given that illustrated the use of the strategy. 2 Coefficients LESSON Florida Standards The student is expected to: Expressions and Equations—7. 2) Graph the constraints 3) Find the points of intersection of the feasible region 4) Write an equation for total profit (this is the objective function) 5) Evaluate the objective function at each vertex. Lesson 3 Reteach Solve and Write Subtraction Equations Example 1 Solve x − 4 = 10. Colleen Pastoor 133,993 views. The y-intercept is where the line will cross the y-axis, so count up or down on the y-axis the number of units indicated by the b value. Word Problem Practice Writing Equations 2-1 Chapter 2 9 Glencoe Algebra 1 1. Pre-Algebra Book. 4) at on a grid? Sample answer: The first number tells how far to move to the right from O, and. The absolute value equations in Exercises 32-40 can be rewritten as two related linear equations. Write F if the amount is finite. Write the equation in point-slope form from Exercise 16. 6: Linear Programming with Answers for use with write the direct variation equation that relates. 3x 5 6 and x 1 1 2 5 2 ˜ 4. Graph linear functions that represent real-world situations and give their domain and range. Algebra Topics Integers Rational Numbers Real Numbers Absolute Value Algebraic Expressions Equations Polynomials Monomials Linear Equations. Guided Lesson - This truly is a powerful skill, if kids can master it. Standards: 8. Each time the x-value increases by 2, the y-value increases by 3. So the solution is (23, 760). Use a graphing calculator to find the equation of the line of best fit for the following data. These improve students’familiarity with the answer formats they may encounter in test taking. Please include the following information: worksheet title and the problem number. Finding a Linear Equation from a Table (Khan Academy). (b) Work out the length of the rectangle. Name: Date: Block: Sections 5. { y ! 3x 2y ! 6x 2. Lesson 3-6: Solving Systems of Linear Equations in Three Variables Page 1 of 6 Ok, here we are. 2x - 4 = 10 Solution. Diagram not drawn to scale (2x + 10) (x-3 ) (a) Work out the value of x. Multiply 2-Digit Numbers With Regrouping - Lesson 2. Graph linear equations using the slope and y-intercept. Some equations contain variables.