Answer
$x=-4$
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: $x=-4$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 7 - Cumulative Review - Page 563: 9
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