Help with an Open Middle Screen

I’ve created several Open Middle screens; here is the most recent:

I would love to put in some CL that, when a correct answer is found, will populate the table with the correct equation and answer, and keep a tally of how many correct solutions the student has found (“You have found 4 correct equations!”). I’d like it so that correct answer 1 goes in row 1, correct answer 2 goes in row 2, etc.

Anyone out there have the time and know-how to help me with this?