Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.4 - Formulas and Percents - Exercise Set - Page 155: 89


$$9(x - 5)$$

Work Step by Step

We need to translate the different parts of the statement in order to come up with an algebraic expression. "Nine times" means to multiply by $9$. The "difference of a number and $5$" means to subtract $5$ from a number, $x$. Putting the pieces all together, we get: $$9(x - 5)$$
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