Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 1 - Systems of Linear Equations - Review Exercises: 12

Answer

$y$ = -$\frac{2}{3}$ , $x$ = $\frac{7}{3}$

Work Step by Step

$x$ = $y$ + 3 4($y$ + 3) = $y$ + 10 4$y$ + 12 = $y$ + 10 3$y$ = -2 $y$ = -$\frac{2}{3}$ $x$ = (-$\frac{2}{3}$) + 3 $x$ = $\frac{7}{3}$
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