Answer
12
Work Step by Step
Replace $x$ with 4 and $y$ with -4 in $2x-y$:
$2x-y=2\times(4)-(-4)=8+4=12$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.3 - Subtracting Integers - Exercise Set - Page 120: 59
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