Answer
-3m - 3n
Work Step by Step
-3(m + n) = -3(m) - 3(n) = -3m - 3n
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.2 - Real Numbers and Their Properties - R.2 Exercises - Page 18: 72
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