Algebra 2 (1st Edition)

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

Chapter 3 Linear Systems and Matrices - 3.6 Multiplying Matrices - 3.6 Exercises - Mixed Review - Page 202: 58


$x=-1$ and $y=4$

Work Step by Step

$3x+2y=5$ $-x+3y=13$ $/\times(3)$ __________________ $3x+2y=5$ $-3x+9y=39$ __________________ $11y=44$ $y=\frac{44}{11}$ $y=4$ For $y=4$... $-x+3(4)=13$ $-x=13-12$ $-x=1$ $x=-1$
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