Answer
$x=23, y=49$
Work Step by Step
1, $y=2x+3$
2. $x+y=72$
$y=72-x$
Put the second one in the first one.
$72-x=2x+3$
$72-3=3x$
$\frac{69}{3}=x$
$x=23$
$y=72-23$
$y=49$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Test - Page 101: 26
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