Answer
$(3,-2)$
Work Step by Step
$2x+5y=-4$
$3x-y=11$
$3x=y+11$
$y=3x-11$
$2x+5(3x-11)=-4$
$2x+15x-55=-4$
$17x-55=-4$
$17x=51$
$x=3$
$3(3)-y=11$
$9-y=11$
$-y=2$
$y=-2$
$(3,-2)$
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: 13
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