Answer
$a=-5$
$b=3$
Work Step by Step
In the top left is three, therefore to be equal, b in the top left, must also be three.
In the bottom right is negative five, therefore to be equal, a in the bottom right, must also be negative five.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 10 - Section 10.4 - The Algebra of Matrices - 10.4 Exercises - Page 720: 7
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