#### Answer

x = -10

#### Work Step by Step

Solve: 15x + 20 - 10x - 9 = 25x + 8 - 21x - 7
15x + 20 - 10x - 9 = 25x + 8 - 21x - 7
5x + 11 = 4x + 1
5x + 11 -4x = 4x + 1 - 4x
x + 11 = 1
x + 11 - 11 = 1 - 11
x = -10

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

x = -10

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