3x - 5 + 2x = 25

To solve for x, we need to isolate x on one side of the equation.

First, combine like terms on the left side of the equation:
3x + 2x - 5 = 25

Next, combine like terms:
5x - 5 = 25

Add 5 to both sides of the equation to isolate the variable:
5x - 5 + 5 = 25 + 5
5x = 30

Finally, divide both sides of the equation by 5 to solve for x:
5x/5 = 30/5
x = 6

Therefore, x = 6.