Answer
$ 18x$
Work Step by Step
RECALL:
The distributive property states that for any real numbers a, b, and c:
$ac + bc = (a+b)c$
Use the rule above to obtain:
$5x+13x
\\= (5+13)x
\\= 18x$
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 - Exercise Set - Page 53: 48
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