Solving Systems of Linear Equations Using Matrices and Solving Non-Linear Equations.

This Video goes over two different topics in College Algebra.
The first topic is Solving Systems of Linear Equations using Matrices. This portion of the video goes to about 47 minutes.
The second topics talks about how to solve Systems of Non-Linear Equations by looking at the graph, and using the Substitution and Elimination Method. You can find this at approximately 47 minutes into the video.