Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 6 - Review - Page 263: 20


$$x= 2.$$

Work Step by Step

We have: $\frac{7}{x}-3=\frac{1}{x}$ By multiplying both sides by $x$ and grouping the like terms, we get $$\frac{7}{x}x-3x=\frac{1} {x}x\Longrightarrow 7-3x=1 \Longrightarrow 3x=6.$$ By dividing both sides by $3$, we have $$x= \frac{6}{3}=2.$$
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