Solve for x.

First, distribute -3 through the parentheses:

-3(x-5) - 2x = -10
-3x + 15 - 2x = -10

Combine like terms:

-5x + 15 = -10

Subtract 15 from both sides:

-5x = -25

Divide by -5:

x = 5

Therefore, the solution is x = 5.