Elementary Linear Algebra 7th Edition

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

Chapter 2 - Matrices - 2.1 Operations with Matrices - 2.1 Exercises: 1

Answer

$x=-4$ $y=22$

Work Step by Step

$\begin{pmatrix} x & -2\\ 7 & y \end{pmatrix}=\begin{pmatrix} -4 & -2\\ 7 & 22 \end{pmatrix}$ All we need to do here is compare elements: $x=-4$ $y=22$
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