Hello,
Im new to Mathematica and i didnt find the answer to my question in the help.
Its an easy one:
I have to equations with one identical variable, which i want to equalize and solve for another variable.
For example:
a=b/c
a=d*e
Solve these two equations for e.
Solution would be: e=b/(c*d).
My calculator TI89Titanium does this automatically, but when i try to use the Solve[...,e] function in Mathematica the solution is: {}
Thanks in advance!