Answer
$x=-6\\y=0$
Work Step by Step
Given: $x+4y=-6\\-2x+y=12$
Multiply both sides of the first equation by $2$, and then add it to the second equation:
$9y=0$
Solve for y: $y=0$
Find x: $x+4(0)=-6\\x=-6$
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 7 Exponential and Logarithmic Functions - 7.6 Solve Exponential and Logarithmic Equations - 7.6 Exercises - Mixed Review - Page 522: 64
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