jika f¹(x)=x-3/5 dan fog(x)=8-10x temukan g(x)

f-¹ (x) = (x - 3)/5
y = (x - 3)/5
5y = x - 3
5y + 3 = x
x = 5y + 3
f(x) = 5x + 3
fog(x) = 8 - 10x
5(g(x)) + 3 = 8 - 10x
5(g(x)) = -3 + 8 - 10x
5(g(x)) = 5 - 10x
bagi dengan 5
g(x) = 1 - 2x