Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Cumulative Review - Page 411: 29

Answer

10

Work Step by Step

$2(x+4)=4x-12$ $2x+8=4x-12$ $20=2x$ $x=10$
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