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 - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 60

Answer

True

Work Step by Step

Since subtracting a number is the same as adding its opposite, a number minus its opposite is the same as adding the number to itself, which is twice the number.
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