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: 9


$x=-6$ and $y=7$

Work Step by Step

$2x+3y=9$ $-3x+y=25$ $/\times(-3)$ __________________ $2x+3y=9$ $9x-3y=-75$ __________________ $11x=-66$ $x=-\frac{66}{11}$ $x=-6$ For $x=-6$... $2(-6)+3y=9$ $3y=21$ $y=\frac{21}{3}$ $y=7$
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