Algebra: A Combined Approach (4th Edition)

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

Chapter 1 - Section 1.4 - Adding Real Numbers - Practice: 17

Answer

a. 22, b. $\frac{2}{7}$, c. $x$, d. -14, e. -2.3

Work Step by Step

We know that if $a$ is a number, then $-(-a)=a$. Therefore: a. $-(-22)=22$ b. $-(-\frac{2}{7})=\frac{2}{7}$ c. $-(-x)=x$ d. $-|-14|=-(14)=-14$ e. $-|2.3|=-(2.3)=-2.3$
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