## Elementary Algebra

Published by Cengage Learning

# Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.5 - Use of Properties - Problem Set 1.5 - Page 34: 67

#### Answer

$72$

#### Work Step by Step

Substituting $x=-5 ,$ the given expression, $8(x+4)-10(x-3) ,$ evaluates to \begin{array}{l}\require{cancel} 8(-5+4)-10(-5-3) \\\\= 8(-1)-10(-8) \\\\= -8+80 \\\\= 72 .\end{array}

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