#### Answer

A. Distributive property

#### Work Step by Step

We are given the statement $5x+15x=(5+15)x$.
This is an example of the distributive property, which holds that $a(b+c)=ab+ac$ (for real numbers $a$, $b$, and $c$).

Published by
Pearson

ISBN 10:
0321969359

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

A. Distributive property

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