Answer
37
Work Step by Step
We substitute $x=-2$ and $y=7$ in the given expression and evaluate it using order of operations (PEDMAS):
$2(x+y)-3(x-y)$
=$2(-2+7)-3(-2-7)$
=$2(5)-3(-9)$
=$10+27$
=$37$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.5 - Use of Properties - Problem Set 1.5 - Page 34: 71
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