Answer
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Work Step by Step
RECALL:
The sum of two numbers that are opposites is zero.
The numbers being added are opposites of each other.
Thus, their sum is zero.
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.5 - Addition of Real Numbers - Concept and Vocabulary Check - Page 62: 5
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