Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 2 - Equations, Inequalities, and Problem Solving - 2.2 Using the Principles Together - 2.2 Exercise Set: 38

Answer

$z=9$

Work Step by Step

By combining like terms and by using the properties of equality, the solution to the given equation, $ -3z+8z=45 $, is \begin{array}{l}\require{cancel} 5z=45 \\\\ z=\dfrac{45}{5} \\\\ z=9 .\end{array}
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