Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.2 - The Multiplication Property of Equality - Exercise Set: 12

Answer

$z=6$

Work Step by Step

Divide both sides of the equation by -9 to isolate the variable. $-54=-9z$ $-9z=-54$ $\frac{-9z}{-9}$=$\frac{-54}{-9}$ $z=6$ Check the answer. -54=-9(6) -54=-54
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