Playlist
Math 40 4.1A Solving systems of equations
Math 40 4.1B Substitution and Elimination methods
Math 40 4.3 (New-All of section 4.3)
Math 40 4.3A Number and geometry word problems
Math 40 4.3B Distance rate time problems
Math 40 4.3C Mixture problems
Math 40 4.3D Miscellaneous Word problems