Answer
$z=-27$
Work Step by Step
We are given the equation $\frac{z}{9}=-3$. First, we must rewrite the left side as $\frac{1}{9}z$. Next, multiply both sides by 9.
$(\frac{1}{9}z\times9)=z=-3\times9=-27$
Therefore, $z=-27$.
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises - Page 670: 62
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