Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice - Page 74: 3


b) -54

Work Step by Step

Use the order of operations to simplify the expression. $8(-9)-6(-3)\longrightarrow$ multiply, working left to right $=-72-6(-3)\longrightarrow$ multiply $=-72-(-18)\longrightarrow$ change subtraction to addition and reverse the sign of the following term $=-72+18\longrightarrow$ add $=-54$
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