System of non-linear equations

[Gabriel]

Hi,
I tried to solve a system of non linear and non polynomial equations and I managed to solve it with the Solve App and in Advanced graph mode, looking for intersections in the grap or in num mode(using Trace when I was nearby). I wanted to know if there was a way to solve non-linear systems with something like solve-fsolve-nsolve(i think I got the syntax wrong), maybe specifing for example 1..7 for x and 2..4 for y rather than putting one number, like you do in the Solve App.