Using Matlab to solve a system of linear equations

In this screencast, we go over a chemical engineering example of using Matlab's "backslash" operator to solve for unknown molar flow rates in a system of linear equations.

NOTE: at about 2:12, I wrote and said out loud that the conversion is 0.70, but it was supposed to be 0.30 (see problem statement earlier in the video). However, later in the video, the rearranged equation, ndotA2 = 0.7*ndotA1, is correct.