Algebra: A Combined Approach (4th Edition)

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

Chapter 7 - Review: 41

Answer

$n=30$

Work Step by Step

$\dfrac{n}{10}=9-\dfrac{n}{5}$ Multiply the whole equation by $10$: $10\Big(\dfrac{n}{10}=9-\dfrac{n}{5}\Big)$ $n=90-2n$ Solve for $n$: $n+2n=90$ $3n=90$ $n=\dfrac{90}{3}$ $n=30$
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