A system of linear equations is a collection of linear equations that use the same set of variables. Solving a system of linear equations requires that you find values for each variable that satisfy each equation.
This collection includes tutorials on the different ways of approaching systems of linear equations.
This Formula Solver program walks you through the steps for solving a system of two linear equations in two variables, using the graphing method. You can use your own values, and it will draw graphs and plot the solution.