Answer
$37$
Work Step by Step
Substituting $x=
-2
,$ the given expression, $
7(x+6)-9(x+1)
,$ evaluates to
\begin{array}{l}\require{cancel}
7(-2+6)-9(-2+1)
\\\\=
7(4)-9(-1)
\\\\=
28+9
\\\\=
37
.\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: 64
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