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 $x=-1$.
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
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
