Answer Happy

Let f(x) = 3x +5 and g(x)=2x-7. Find (f+g)(x). (f-g)(x). (fg)(x), and (f+g)(x) = (Simplify your answer.) (f-g)(x) = (Simplify your answer.) (fg)(x) = (Simplify your answer.) (x)= (Simplify your answer.) - (1)× (x). Give the domain of each.