## Algebra 1

Published by Prentice Hall

# Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 68

#### Answer

$=\frac{2d}{5}$

#### Work Step by Step

$\frac{d}{5}-(-\frac{d}{5})\longrightarrow$ change subtraction to addition by changing the sign of the following term $=\frac{d}{5}+\frac{d}{5}\longrightarrow$ add the numerators of like fractions $=\frac{2d}{5}$

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