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 - 1.5 - Use of Properties - Problem Set 1.5: 66

Answer

$85$

Work Step by Step

Substituting $ x=7 ,$ the given expression, $ 4(x-6)+9(x+2) ,$ evaluates to \begin{array}{l}\require{cancel} 4(7-6)+9(7+2) \\\\= 4(1)+9(9) \\\\= 4+81 \\\\= 85 .\end{array}
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