Answer
{(3,2)}
Work Step by Step
x+2y=7
x+2y-2y=7-2y
x=7-2y
Plug this value for x into the other equation
2x+y=8
2(7-2y)+y=8
14-4y+y=8
14-3y=8
14-14-3y=8-14
-3y=-6
y=$\frac{-6}{-3}$
y=2
Therefore the solution is {(3,2)}
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 4 - Review Exercises - Page 338: 38
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