Answer
$x=-19$
Work Step by Step
Adding $
-12
$ to both sides of the given equation, $
x+12=-7
$, then,
\begin{array}{l}
x+12-12=-7-12
\\\\
x=-19
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set - Page 86: 22
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