Answer
$30(a+b)$
Work Step by Step
Using the distributive property
$30a+30b=(30)*a+(30)*b=30(a+b)$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 1 - Section 1.7 - Properties of Real Numbers - Exercise Set - Page 71: 69
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