Algebra 2 (1st Edition)

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

Chapter 3 Linear Systems and Matrices - Chapter Review - Page 223: 7


$x=-3$ and $y=7$

Work Step by Step

$3x+2y=5$ $/\times(2)$ $-2x+3y=27$ $/\times(3)$ __________________ $6x+4y=10$ $-6x+9y=81$ __________________ $13y=91$ $y=\frac{91}{13}$ $y=7$ For $y=7$... $3x+2\times(7)=5$ $3x=-9$ $x=-\frac{9}{3}$ $x=-3$
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