Answer
$y+7x$
Work Step by Step
The commutative property of addition holds that $a+b=b+a$, for real numbers a and b.
In this example, we can set $7x+y=a+b$.
So, $a=7x$ and $b=y$.
Therefore, $b+a=y+7x$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 1 - Section 1.4 - Properties of Real Numbers and Algebraic Expressions - Exercise Set - Page 39: 35
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