Chapter 7 – Solving Systems of Linear Equations

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Presentation transcript:

Chapter 7 – Solving Systems of Linear Equations 7.2 – Solving Linear Systems by Substitution

7.2 – Solving Linear Systems by Substitution Today we will learn how to: Use substitution to solve a linear system Model a real-life situation using a linear system

7.2 – Solving Linear Systems by Substitution Example 1 Solve the linear system. 2x + 6y = 15 x = 2y

7.2 – Solving Linear Systems by Substitution Example 2 Solve the linear system. 3x + y = 5 2x – y = 10

7.2 – Solving Linear Systems by Substitution STEPS FOR SOLVING A LINEAR SYSTEM BY SUBSTITUTION

7.2 – Solving Linear Systems by Substitution Example 3 Solve the linear system. x + 2y = 4 -x + y = -7

7.2 – Solving Linear Systems by Substitution HOMEWORK Page 408 #14 – 40 even