## Introductory Algebra for College Students (7th Edition)

$$9(x - 5)$$
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: $$9(x - 5)$$