Making two formulae cells equal each other (have 3 variables that can change)

Hi there,

I'm currently writing my thesis on changes in tax policy and I am looking for a way to make two cells equal each other. All the formulae are based on 3 cells: Taxable income, medical aid contributions and additional medical expenses. These are the only cells which you can change the value of and the rest of my formulae change with them. I want to find what combinations of values for these cells make my final tax payable cells equal. I know this could be hundred of combinations but that's what I need!

I don't know much about macros or VBA at all. All I know is that in excel this is most likely where the answer lies!

I can use anything that will give me an answer of making those 2 cells equal! I am terrible at excel tho. And I know there should be a minimum of 4 combinations but probably more than that...