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 - Review Exercises: 16

Answer

z=-10

Work Step by Step

5z+20=3z 5z-3z+20=0 2z+20=0 2z=0-20 2z=-20 z=$\frac{-20}{2}$ z=-10 Check the answer. 5(-10)+20=3(-10) -50+20=-30 -30=-30
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