#### Answer

$9y+5x$

#### Work Step by Step

The commutative property of addition holds that $a+b=b+a$ (for real numbers $a$ and $b$).
Therefore, $5x+9y=9y+5x$.

Published by
Pearson

ISBN 10:
0321969359

ISBN 13:
978-0-32196-935-4

$9y+5x$

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