Answer
$(-2,-4)$
Work Step by Step
$(2x+3y=-16)$ $+$
$(5x-10y=30)$
$(10x+15y=-80)$ $-$
$(10x-20y=60)$
$35y=-140$
$y=-4$
$2x+3(-4)=-16$
$2x-12=-16$
$2x=-4$
$x=-2$
$(-2,-4)$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.1 - Page 527: 28
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