Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - Chapter Review: 2

Answer

The answer is D: opposite.

Work Step by Step

An opposite number just means a negative version of the original number. Because a number plus itself as a negative (for instance 5+(-5)) is always 0, the word "opposite" makes the statement true.
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