Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises: 62

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, $z=-27$.
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