# How do you write an algebraic expression that models the word phrase "The difference of 9 and a number n"?

##### 1 Answer

Mar 23, 2016

#### Explanation:

Recall that the difference is the result of an equation involving subtraction.

Thus:

#color(green)(|bar(ul(color(white)(a/a)"difference"=9-ncolor(white)(a/a)|)))#