System of Nonlinear Equations consists of two or more equations with atleast onenonlinearequation.
Substitution method – solving one variable from an equation using another equation then substituting it into other equation(s).
Graphical Method - plotting the graphs of all the equations on the same coordinate plane to find their intersections, which are solutions of the system.
Elimination Method - eliminating the same variable by adding/subtracting the equations so that one variable is left