Answer
$(2,3)$
Work Step by Step
After using the addition method, we get
$2x-y=1$
$8x-4y=4$
This gives: $9x=18$
or, $x=2$
when $x=2$ then we have $2(2)-y=1 \implies y=3$
Hence, our answers are: $(2,3)$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 7 - Review Exercises - Page 876: 2
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