Answer
$x=-6$ and $y=7$
Work Step by Step
$2x+3y=9$
$-3x+y=25$ $/\times(-3)$
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$2x+3y=9$
$9x-3y=-75$
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$11x=-66$
$x=-\frac{66}{11}$
$x=-6$
For $x=-6$...
$2(-6)+3y=9$
$3y=21$
$y=\frac{21}{3}$
$y=7$
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 - Chapter Review - Page 223: 9
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