Source: Parmanand Jagnandan
(0:00 to 0:33) Prologue
(0:33 to 1:20) Combining Numbers
(1:20 to 7:33) Combining Like Terms
(7:33 to 9:39) Simplifying a Single Expression
(9:39 to 13:41) Simplification and Substitution
Source: Parmanand Jagnandan