Algebra 2 (1st Edition)

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 165: 53



Work Step by Step

Let's multiply the second equation by $2$. Then we get: $64-2xy=6y$. Adding this to the first equation we get: $64+y=44+6y\\20=5y\\y=4$. Then $64-2x(4)=6(4)\\64-8x=24\\-8x=-40\\x=5$
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