Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 9 Quadratic Relations and Conic Sections - Prerequisite Skills - Page 612: 13



Work Step by Step

Adding the first equation and twice the second equation we get: $-5y=10\\y=-2$ Then plugging this into the first equation we get: $-4x+7(-2)=-14\\-4x-14=-14\\-4x=0\\x=0$
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