Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Cha658pter 9 - 9.3 - Multivariable Linear Systems - 9.3 Exercises - Page 658: 14


$x=17; y=-11; z=-3$

Work Step by Step

Plug the value of $z=-3$ into the second equation. $3y-8(-3)=-9 \implies y=-11$ Now, we will plug the value of $y$ and $z$ into the expression of $x$ to find the value of $x$. We get: $x-(-11)+2(-3)=22 \implies x=17$ Thus, $x=17; y=-11; z=-3$
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