Algebra 2 Common Core

by Hall, Prentice

Published by Prentice Hall

ISBN 10: 0133186024

ISBN 13: 978-0-13318-602-4

Chapter 1 - Expressions, Equations, and Inequalities - 1-4 Solving Equations - Lesson Check - Page 30: 9

Answer

He didn't subtract -10 from both sides correctly. The correct answer is $x=-1$

Work Step by Step

When you correctly subtract both sides by 10, you get $12x=-12$, which equals $x=-1$.

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