Answer
$x=3.5,y=1.75$
Work Step by Step
$6x-4y=14\\12x-8y=28$
Adding the multiplied version to the second equation we get: $14x=49\\x=3.5$
Then $8y=21-2(3.5)=14\\y=1.75$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 3 Linear Systems and Matrices - 3.2 Solve Linear Systems Algebraically - 3.2 Exercises - Skill Practice - Page 164: 26
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