Systems 5 Solve by Substitution - part 1

Videos by Julie Harland http://yourmathgal.com
This is part 1 of how to solve a system of equations using the substitution method. The first system solved is 2x - y = -5 and y = x + 4. The second system solved is 3x + y = -14 and 4x + 3y = -22.<br />For more great math videos visit: www.youtube.com/user/videosbyjulieharland/videos