Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.1 - The Addition Property of Equality - Exercise Set - Page 120: 49



Work Step by Step

7y+4=6y-9 First subtract 6y from both sides 7y-6y+4=-9 y+4=-9 Then subtract 4 from both sides y=-9-4 y=-13 Check the answer. 7(-13)+4=6(-13)-9 -91+4=-78-9 -87=-87
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