Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 9 - Basic Algebra - 9.4 Order of Operations - 9.4 Exercises - Page 654: 43

Answer

60

Work Step by Step

A fraction bar implies parentheses around the numerator and the denominator. Simplify the numerator and denominator. $\frac{2^3(-2-5)+4(-1)}{4+5(-6\times2)+(5\times11)}\longrightarrow$ Simplify equations enclosed in parentheses. =$\frac{2^3(-7)+4(-1)}{4+5(-12)+55}\longrightarrow$ Solve exponents. =$\frac{8(-7)+4(-1)}{4+5(-12)+55}\longrightarrow$ Solve multiplication equations. =$\frac{-56+(-4)}{4+(-60)+55}\longrightarrow$ Solve addition and subtraction equations, working left to right. =$\frac{-60}{(-56)+55}\longrightarrow$ Solve addition and subtraction equations, working left to right. =$\frac{-60}{-1}\longrightarrow$ Simplify. =60
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