Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 91: 30

Answer

$x=12$

Work Step by Step

We need to get the x alone. In order to cancel out division, we use multiplication, so we multiply both sides by 2 to get that $x+3=15$. We now cancel out the addition by subtracting 3 on both sides, giving us a final answer of $x=12$. We plug 12 in for x and confirm that our answer is, indeed, correct.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.