Answer
$x=-\frac{7}{3}$
Work Step by Step
$-4(x+3)=5x+9$
$-4x-12=5x+9$
$-12-9=5x+4x$
$-21=9x$
$x=-\frac{21}{9}$
$x=-\frac{7}{3}$
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 - 3.1 Solve Linear Systems by Graphing - 3.1 Exercises - Mixed Review - Page 158: 42
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