Answer
Associative Property of Addition
Work Step by Step
This problem illustrates that property by showing that the sum is equal regardless of whether the 2 and 7 are grouped or the 6 and 2 are grouped.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set - Page 17: 77
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