9(x) = 2x-1 (fog) (x) = -6x+7 Tentukan fungsi f(x) ??

(fog)(x) = F(x) = -6x + 7
g(x) = 2x - 1
g^-1 (x) = (x - 1)/2

f(x) = F(g^-1 (x))
f(x) = -6(x - 1)/2 + 7
f(x) = -3x + 3 + 7
f(x) = -3x + 10