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 164: 16


$x=-4$ and $y=0$

Work Step by Step

$4x-2y=-16$ $/\times(2)$ to get rid of the $y$ $-3x+4y=12$ _________________ $8x-4y=-32$ $-3x+4y=12$ _________________ $5x=-20$ $x=-\frac{20}{5}=-4$ when $x=-4$... $-3(-4)+4y=12$ $4y+12=12$ $4y=0$ $y=0$
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