Solve the equation for y.
4x - 5y = 9
Ay = -5/4x = -5/9
By = -4x = 9
Cy = 5/4x + 9/4
Dy = 4/5x - 9/5
4x - 5y = 9
Ay = -5/4x = -5/9
By = -4x = 9
Cy = 5/4x + 9/4
Dy = 4/5x - 9/5