# Chapter 4 - Section 4.2 - Adding and Subtracting Polynomials - 4.2 Exercises: 59

$r+13$

#### Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $(3r+8)-(2r-5) ,$ simplifies to \begin{array}{l}\require{cancel} 3r+8-2r+5 \\\\= (3r-2r)+(8+5) \\\\= r+13 .\end{array}

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