Answer
$a.) \ 5$
$b.) \ 8-x$
Work Step by Step
$a.) \ a+3=8 \longrightarrow a=8-3 \longrightarrow a=5$
$b.) \ b+x=8 \longrightarrow b = 8-x$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 8 - Cumulative Review - Page 626: 13
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