Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.2 - Addition and Subtraction of Rational Numbers - Problem Set 2.2 - Page 57: 45

Answer

$\frac{-2}{5x}$.

Work Step by Step

In order to add or subtract fractions, we start by making a common denominator (bottom of the fraction). Thus, we multiply 1/x by 5/5 to obtain: $\frac{5}{5x}$-($\frac{7}{5x}$)=$\frac{-2}{5x}$.
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