by louisvuittonsac-pascher.info

Need help solving systems of linear equations? In this video, a louisvuittonsac-pascher.info algebra tutor uses the substitution method to solve a system of linear equations, and shows you how to use graphing to make sure you don’t get tricked by systems of parallel lines that have no solution. You’ll graph the linear equations, find their point of intersection, solve them using substitution, and check your work to make sure it all makes sense.