Issue with CAS solver function involving passing strings to the variable position.

[Grayhek]

yes I tried that as well period on my calculator I already had them as global variables in another program labeled load_variables (). I just put them in as local variables so that people would not get lost reading the program. I may have to resort to waiting multiple If statements/Cases or figure out how to utilize the solver app. I'm reluctant to do this
1) because I don't know how to program utilizing an app
2) because multiple If statements would clutter up the code.