# Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1 - Page 7: 31

$79$

#### Work Step by Step

Using order of operations, the given expression, $83-\dfrac{4(12-7)}{5} ,$ simplifies to \begin{array}{l}\require{cancel} 83-\dfrac{4(5)}{5} \\\\= 83-\dfrac{20}{5} \\\\= 83-4 \\\\= 79 .\end{array}

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