Answer
-5
Work Step by Step
-4x - y
=-4(5) – (-15) (x is 5, y is -15)
= - (20) + 15 (Change subtraction to addition (-15) to 15)
= -20 + 15
= -5
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 661: 23
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