Khan Academy on a Stick
Trolls, Tolls, and Systems of Equations
A troll forces us to use algebra to figure out the make-up of his currency. We end up setting up a system of equations
If the above player doesn't work, you can try this direct link.
A troll forces us to use algebra to figure out the make-up of his currency. We end up setting up a system of equations
If the above player doesn't work, you can try this direct link.