Answer
Thus $x=11,y=4$
Work Step by Step
$3x-6y=9\\x-2y=3\\x=3+2y$
Thus $-4(3+2y)+7y=-16\\-12-8y+7y=-16\\-y=-4\\y=4$
Then $x=3+2(4)=11$
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 - 3.2 Solve Linear Systems Algebraically - Guided Practice for Examples 1 and 2 - Page 161: 3
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