Elementary Algebra

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: 51

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}
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