jika f(x) = 3x-4 dan g(x) = 2/x-1,x ≠ 1, maka (gof)-1(x+2)=.....

(gof)(x)=g(3x-4)
=2/ 3x-1
=2/ 3x-5
y = 2/ 3x-5
3xy-5y= 2
3xy=5y+2
x(3y)=5y+2
x= 5y+2 / 3y
(gof)-1= 5x+2 /3x
(gof)-1 (x+2)= 5(x+2) +2 / 3(x+2)
= 5x+10+2 / 3x+6
=5x+12 / 3x+6