Answer
-18
Work Step by Step
5x - y +4 z= Replace x with -2, y with 4, z with -1
5(-2) - 4 + 4(-1) simplify
= -10 -4 -4
=-14-4
=-18
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.5 - Order of Operations - Exercise Set - Page 139: 64
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