fsolve() crash with given Interval

[CR Haeger]

Parisse - thanks for the information on implicitplot though Im having trouble getting it to work in Geometry app. Studying plotimplicit in online help..

It does seem handy in these 2 dimension non linear equation sets, to first plot them in Adv Grapher to see where solution(s) exist. I attached one. Let that guide initial guesses for fsolve(). Unfortunately, its not clear to me how to easily send the equations to/from Advanced_Graphing.V1 <--> CAS, especially when they want X, x respectively.