Answer
$72$
Work Step by Step
Substituting $
x=7
,$ the given expression, $
6+3[2(x+4)]
,$ evaluates to
\begin{array}{l}\require{cancel}
6+3[2(7+4)]
\\\\=
6+3[2(11)]
\\\\=
6+3[22]
\\\\=
6+66
\\\\=
72
.\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 - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1 - Page 7: 51
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