Basic College Mathematics (9th Edition)

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

Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises: 19

Answer

Correct Answer is 7.

Work Step by Step

–x–4y = – (–3) – 4(–1) (Now put x=–3 and y=–1) = (3) – (–4) (Remove minus sign from 3) = 3+4 (Change subtraction to addition) = 7
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