Simplify the give expression

-5x+9+2x-4

-5x + 9 + 2x - 4 simplifies into the expression - 3x + 5.

First, gather the like terms. Your problem should look like: (-5x + 2x) + 9 - 4.

Second, simplify. Your problem should look like: - 3x + 9 - 4.

Third, simplify to get the expression. Your problem should look like: - 3x + 5, which is the expression.