I need help creating a function.

The goal is to parse formulas from cells A1 to A5 and find the values
of each factor.
Example:
A1 - "A+B=CD"
A2 - "C+D+E=A"

*Notice the double digit in the first formula.
In this example the macro needs to parse these two rows and find the
values for A,B,C,D and E that satisfy the two formulas.

The idea behind this function is to be able to type simple formulas in
several rows and have the macro calculate whatever the different
factors are that satisfy all the formulas.


Any help would be appreciated on how to do this.