Answer
$y=4x-\frac{7}{2}$
when $x=-1$ then
$y=-\frac{15}{2}$
Work Step by Step
$8x-2y=7$
$2y=8x-7$
$y=4x-\frac{7}{2}$
when $x=-1$
$y=4\times(-1)-\frac{7}{2}$
$y=-4-\frac{7}{2}=-\frac{8}{2}-\frac{7}{2}=-\frac{15}{2}$
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: 50
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