Answer
$32$
Work Step by Step
Substituting $x=
-4
$ and $y=
3
$, the given expression, $
3x+7y-5x+y
,$ evaluates to
\begin{array}{l}\require{cancel}
3(-4)+7(3)-5(-4)+3
\\\\=
-12+21+20+3
\\\\=
9+20+3
\\\\=
29+3
\\\\=
32
.\end{array}
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 - Chapter 1 Review Problem Set - Page 38: 62
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