Answer
6
Work Step by Step
The absolute value of a number $a$ is equal to $a$ if $a\geq0$ and is equal to $-a$ if $a\lt0$.
$-9\lt0$ and $-3\lt0$
Therefore, $|-9|-|-3|=9-3=6$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter R - Section R.1 - Basic Concepts - R.1 Exercises - Page 11: 55
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