#### Answer

Algebraic expression translation:
$5x-2x$
Simplified form:
$3x$

#### Work Step by Step

Let $x$ = the unknown number
The product of five and a number:
$5x$
Twice the number:
$2x$
The difference between the product of five and a number
and twice the number:
$5x - 2x$
Simplifying gives:
$=(5-2)x
\\=3x$