jika f(x)=3x-4 dan g(x0=3-4x tentukan (gof)-1(x) bantuin please

jawab

f(x) = 3x - 4
g(x) = 3 - 4x

gof (x) =  g{ f(x)}
= g { 3x- 4)
= 3 - 4(3x - 4)
= 3 - 12x + 16
= 19 - 12x

(gof)⁻¹ (x ) = 1/12( 19 - x)