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: 8

Answer

-26

Work Step by Step

Replace r with -3. Replace s with -5. 2(-3) + 4(-5) Using the order of operations, do all multiplications first. Then addition. = (-6) + (-20) Now, change addition to subtraction. =-6-20 = -26
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