Algebra: A Combined Approach (4th Edition)

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

Chapter 7 - Cumulative Review - Page 563: 9



Work Step by Step

Step 1: $3-x=7$ Step 2: $3-x+x=7+x$ Step 3: $3=7+x$ Step 4: $3-7=7-7+x$ Step 5: $-4=x$ Step 6: $x=-4$
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