Answer:
2x - 3
Step-by-step explanation:
Plug in values of f(x) and g(x) into the formula, we shall call it h(x)
h(x) = (f-g)
h(x) = ((3x-1) - (x+2))
h(x) = (3x-1 - x - 2)
h(x) = 3x - 3 - x
h(x) = 2x-3