Answer
$6x+12$
Work Step by Step
By combining like terms, the given expression, $
(3x+5)+(3x+7)
$, is equivalent to
\begin{array}{l}\require{cancel}
(3x+3x)+(5+7)
\\\\=
6x+12
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 290: 109a
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