This video demonstrates examples of special systems of equations that either have no solution or an infinite number of solution. These types of systems are called consistent or inconsistent systems. [15:18]

This video demonstrates how to test a solution for a system of equations by substituting the values back into each equations. [2:38]

This video demonstrates how to use a graph in order to determine the number of solutions for a system of linear equations. [3:26]

This video demonstrates how to graph a system of equations and identify how many solutions it has. [5:08]

This video demonstrates how to test a solution for a system of equations by substituting the values back into each equations.

This video demonstrates how to graph a system of equations and identify how many solutions it has.