diketahui fungsi f(x)=x+5,dan g(x)=-4x (fog)-1(-3)

f(x) = x + 5
g(x) = - 4x

(fog) (x)
= (-4x) + 5
= -4x + 5
y = -4x + 5
4x = 5 - y
x = (5 - y) / 4
(fog)-¹(x) = (5 - x)/ 4

(fog)-¹(-3) = (5 - (-3)) / 4
= (5 + 3) / 4
= 8/4
= 2

Nilai (fog)-¹(-3) = 2