Consider the curve given by the equation xy - 3x + 2y = -2. Find the equation of the tangent in the point (2,1).

So through implicit differentiation I've found that (if I'm correct) y' = (1-y)/(x-2)

How do I proceed to find the tangent line since there are still 2 variables in the function?

So through implicit differentiation I've found that (if I'm correct) y' = (1-y)/(x-2)

How do I proceed to find the tangent line since there are still 2 variables in the function?