Tentukanlah fungsi invers dari F(x) = -5x + 3 / 2x+4

f(x) = (ax + b) / (cx + d)
f⁻¹ (x) = (dx - b)/(-cx  + a)

f(x) = (-5x +3) / (2x + 4)
f⁻¹ (x) = (4x - 3)/ (-2x - 5)
f⁻¹ (x) = - [ (4x-3) / (2x + 5) ]