This document discusses solving nonlinear systems of equations. It provides 6 examples of solving nonlinear systems using various methods like substitution, elimination, and a combination of methods. It also discusses how to visualize the graphs of nonlinear systems and how complex solutions may arise. The final example uses a nonlinear system to find the dimensions of a box given the volume and surface area. Key methods taught are substitution, elimination, factoring, and using the quadratic formula.