If 3x - 13 = 8, find the value of x - 4.

The value needed for this equation is

there is more than one way to do this most people would solve fo x and then find x-4 but I want to be different

3x - 13 = 8

3x - 12-1 = 8

3(x-4) -1 =8

3(x-4) = 9

x-4 = 9/3 = 3