Diketahui f(x) = 5x + 1 dan g(x) = 2(3-2x) . nilai (f-g)(x) adalah

(f-g)(x) = f(x) – g(x)
(f-g)(x) = 5x + 1 – 2(3-2x)
(f-g)(x) = 5x + 1 – 6 + 4x
(f-g)(x) = 9x – 5