Answer
$(5,1)$
Work Step by Step
$x+3y=8$
$y=2x-9$
$x+3(2x-9)=8$
$x+6x-27=8$
$7x-27=8$
$7x=35$
$x=5$
$5+3y=8$
$3y=3$
$y=1$
$(5,1)$
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: 7
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