Answer
$z=-9$
Work Step by Step
We are given the equation $-4z+2z=18$. We can solve by first combining like terms on the left side.
$(-4+2)z=-2z=18$
Divide both sides by -2.
$z=-9$
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 - Review Exercises - Page 698: 95
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