HP Prime "Cannot Find Solution" when solving two equations

[DGRCarter]

Hi Aries,

You are right those are numbers. I could plug in all the variables and solve them individually. But that defeats the purpose of solving multiple equations simultaneously and optimizing on a solution. These are parameters that can be changed to solve for different values of I and S quickly. I was able to solve multiple equations on the HP50 with a simple program. I thought that is what the Solve App is for, right?