Answer
b+a
Work Step by Step
The commutative property of addition states that you can switch the order in which you add numbers or variables and the expressions are still equivalent.
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.4 - Basic Rules of Algebra - Concept and Vocabulary Check - Page 53: 2
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