Published On Aug 13, 2013
http://www.freemathvideos.com Learn how to solve a system of equations by using any method such as graphing, elimination and substitution. 7x+5y= -12, 3x-4y=1
show more
http://www.freemathvideos.com Learn how to solve a system of equations by using any method such as graphing, elimination and substitution. 7x+5y= -12, 3x-4y=1