Answer
$a=11.72$
Work Step by Step
We are given the equation $a-3.82=7.9$.
Add 3.82 to both sides.
$a-3.82+3.82=7.9+3.82$
$a+0=7.9+3.82=11.72$
Therefore, $a=11.72$.
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises - Page 669: 36
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