Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.4 Order of Operations - 9.4 Exercises: 64

Answer

$\frac{80}{-6.5}$

Work Step by Step

1. We always need to expand the parenthesis first, remember that multiplying 2 negatives makes a positive: $\frac{-20+60+40}{4+27\div-6-6}$ 2. Division comes next, so:$\frac{-20+60+40}{4-4.5-6}$ 3. We finish up by doing addition and subtraction, working from left to right: $\frac{80}{-6.5}$
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