## Precalculus (6th Edition) Blitzer

Published by Pearson

# Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set - Page 18: 118

9

#### Work Step by Step

$\frac{6(-4) - 5(-3)}{9-10}=\frac{(-24) - (-15)}{-1}=\frac{-9}{-1}=9$

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