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 - 1-6 Multiplying and Dividing Real Numbers - Practice and Problem-Solving Exercises - Page 44: 76

Answer

The Identity Property of Addition

Work Step by Step

The Identity Property of Addition says 0 plus any number is the original number. In this problem, we see that 0 is added to -x to get the original value, -x, so the problem portrays the Identity Property of Addition.
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