Answer
$x+4y=8$
Work Step by Step
Given: $\begin{bmatrix}
10x-3& 1\\
-4-4y &8\\
\end{bmatrix}=\begin{bmatrix}
17& 1\\
-10&8\\
\end{bmatrix}$
$10x-3=17$ and $-4-4y=-10$
$10x=20$ and $4y=6$
$x=2$ and $4y=6$
Here, $x+4y=2+6=8$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 3 Linear Systems and Matrices - Standardized Test Practice - Gridded Answer - Page 231: 14
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