Answer
A
Work Step by Step
We distribute first. We have $4m+3(m+n)=4m+3m+3n$. We can combine like terms to get $4m+3m+3n=7m+3n$. Therefore, the answer is A.
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 1 - Expressions, Equations, and Inequalities - 1-3 Algebraic Expressions - Practice and Problem-Solving Exercises - Page 24: 63
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