Invers dari fungsi f(×)=3×-2÷5×+8,tidak kirang sama dengan -8/5

Fungsi Invers

f(x) = (3x - 2) / (5x + 8)
y = (3x - 2) / ( 5x + 8)
5xy + 8y = 3x - 2
5xy - 3x = - 8y - 2
x(5y - 3) = -8y - 2
x = (-8y - 2) / ( 5y - 3)
f^-1(x) = (-8x - 2)/(5x -3)