Differntial Mode Equation

[sgillon]

Hi, I was wondering how you would re-arrange the differntial mode equation :
Vo=(V2-V1)*(Rf/R1)
to have V1 as the subject of the formula - its been annoying me for ages.

thanks

[KingNothing]

Well...first of all, divide by Rf/R1
\frac{Vo}{Rf/R1}=V2-V1 THen we just subtract V2 and multiply by -1:
\frac{Vo}{Rf/R1}-V2=-V1
V1=\frac{-Vo}{Rf/R1}+V2