Algebra 2 (1st Edition)

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


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 $x=3+2(4)=11$
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