Answer
$a=-10$
Work Step by Step
$\frac{7}{2}+\frac{a}{4}=1$
$\frac{7}{2}+\frac{a}{4}-\frac{7}{2}=1-\frac{7}{2}$
$\frac{a}{4}=-\frac{5}{2}$
$\frac{a}{4}\times4=-\frac{5}{2}\times4$
$a=\frac{-20}{2}=-10$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 8 - Cumulative Review - Page 600: 8
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