Set a cell say A1 =exp(A2+B2)
Set a ell say B1 = (A2^2)/B2 -B2^2
Set a cell say D1 = A1 - B1
You want to set this cell =0 in your goal seek function.
Say x = 1 is in cell A5 and the corresponding y is in Cell B5 and you want to calculate to x = 5
So I use Cell A2 and B2 to do separate each scenario. There is a way to do it without this workaround but this is the same way as I have in my code. As for the first part of your request. Just add a command button to where ever you like on your page and then right click it and assign a macro (ie. what ever you name this one) and voila
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