Elementary Algebra

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

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.4 - Integers: Multiplication and Division - Problem Set 1.4 - Page 26: 56



Work Step by Step

The problem must be worked in the order of PEMDAS (parentheses (or fraction bars), exponents, multiplication, division, addition, and subtraction). $\frac{5(-9) - 6(-7)}{3}$ can be divided into $\frac{5(-9)}{3}$$-$$\frac{6(-7)}{3}$ Doing multiplication and division, the fractions can be evaluated to: $-15$ $-$ $(-14)$ $-15 + (14) =-1$
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