Answer
$-33$
Work Step by Step
$(-7)(3)-(-2)(-6)$
$=-21-(12)$
$=-21-12$
$=-33$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 4 - Section 4.4 - Solving Systems of Equations by Matrices - Exercise Set - Page 240: 32
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