Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.2 - Addition and Subtraction of Rational Numbers - Problem Set 2.2: 91

Answer

$-\frac{79}{36}n$

Work Step by Step

We first apply the distributive property. Then, we simplify the resultant expression: $-n-\frac{7}{9}n-\frac{5}{12}n$ =$n(-1-\frac{7}{9}-\frac{5}{12})$ =$n(\frac{-1(36)-7(4)-5(3)}{36})$ =$n(\frac{-36-28-15}{36})$ =$n(\frac{-36-43}{36})$ =$n(\frac{-79}{36})$ =$-\frac{79}{36}n$
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