Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 13 - Cumulative Review: 17

Answer

$\frac{3}{z}$

Work Step by Step

$\frac{\frac{1}{z}-\frac{1}{2}}{\frac{1}{3}-\frac{z}{6}}$ $=\frac{\frac{2-z}{2z}}{\frac{2-z}{6}}$ $=\frac{2-z}{2z}\div\frac{2-z}{6}$ $=\frac{2-z}{2z}\times\frac{6}{2-z}$ $=\frac{6}{2z}$ $=\frac{3}{z}$
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