College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.1 - Page 17: 79

Answer

Commutative Property of Addition

Work Step by Step

Looking at the problem, we see that they swapped around the numbers they are adding. This shows that it is the Commutative Property of Addition.
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