Answer
$-m-9n+12$
Work Step by Step
Expand the expression using the distributive property, and you will end up with $-m-9n+12$. There are no like terms, so this is your final answer.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - 1-7 The Distributive Property - Practice and Problem-Solving Exercises - Page 52: 89
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