Algebra 1: Common Core (15th Edition)

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

Chapter 2 - Solving Equations - 2-4 Solving Equations With Variables on Both Sides - Practice and Problem-Solving Exercises - Page 106: 23



Work Step by Step

$ 7(6-2a)=5(-3a+1) \\\\ 42-14a=-15a+5 \\\\ 42+a=5 \\\\ a=-37$ We first use the distributive property on both sides of the equation to simplify. We then add 15a to both sides. Next, we subtract by 42 on both sides to get that a=-37. We plug -37 in for a and confirm that our answer is, indeed, correct.
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