Answer
$x=-4$ and $y=-8$
Work Step by Step
$3x-y=-4$
$x+3y=-28$ -->$x=-28-3y$
when $x=-28-3y$...
$3x-y=-4$
$3(-28-3y)-y=-4$
$-84-9y-y=-4$
$10y=-80$
$y=-8$
when $y=-8$....
$x+3y=-28$
$x-24=-28$
$x=-4$
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 - 3.2 Exercises - Quiz for Lessons 3.1-3.2 - Page 167: 7
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