This Purplemath lesson describes how to solve a system of linear inequalities by graphing.

Practice using your graphing calculator for solving linear systems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.

A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. This resource explains this method by showing an example along with a video.

Twenty-seven problems present a variety of practice solving linear systems by substitution. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...