why is this solution undefined.solve problem and show steps

Question

Why is this solution undefined. Solve the problem and show the steps.

 

              y - 7       2
Solve: --------- = --------
              y - 9    y - 9

Answer 1

Problem: why is this solution undefined.solve problem and show steps
Why is this solution undefined. Solve the problem and show the steps.

              y - 7       2
Solve: --------- = --------
              y - 9    y - 9

 

   y - 7           2
---------  =  --------
   y - 9         y - 9
 

  y - 7                             2
---------  *  (y - 9)   =   --------  *  (y - 9)
  y - 9                          y - 9

y - 7 = 2
y - 7 + 7 = 2 + 7
y = 9