Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - 6-2 Solving Systems Using Substitution - Lesson Check - Page 371: 8

Answer

the second equation, $6x-y=1$

Work Step by Step

In the first step, you can choose to solve for either variable in either equation. You should identify the equation and variable that are the simplest to solve for. In this case, solving for y in the second equation is the simplest because the coefficient of y is -1. y can be isolated on one side of the equation using only addition and subtraction.
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