You can put this solution on YOUR website! Form (x/x-9) - 4 = (9/x-9) we multiply all by (x-9) to clear fractions and get
x - 4(x - 9) = 9
x - 4x + 36 = 9
-3x = -27
x = 9
but notice x is not allowed to be nine...the denominators would go to zero....therefore there is No Solution.