Diket f(x)=2x+7dan(fog)(x)=4x+9 Tentukan rumus dri g(x)

(fog) (x) = 4x + 9
2 g(x) + 7 = 4x + 9
2 g(x) = 4x + 2
g(x) = (4x+2)/2
g(x) = 2x + 1