Answer
$x=-2$ and $y=-10$
Work Step by Step
$3x-y=4$ $/\times(3)$
$-2x+3y=-26$
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$9x-3y=12$
$-2x+3y=-26$
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$7x=-14$
$x=\frac{-14}{7}$
$x=-2$
For $x=-2$...
$3(-2)-y=4$
$-y=4+6$
$y=-10$
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 - 3.6 Multiplying Matrices - 3.6 Exercises - Mixed Review - Page 202: 60
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