Answer
$x=-\frac{19}{3}$
Work Step by Step
$-3x-7=12\\-3x=19\\x=-\frac{19}{3}$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 3 Linear Systems and Matrices - Prerequisite Skills - Page 150: 7
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