Solving Linear Equations in More Than One Variable
Sometimes you'll have an equation, e.g. $y = 3x + 2$, that's solved for one of its variables, $y$ in this case, and you need it to be solved for the other one. If the equation is linear in the variable you want to solve for then we can do the job using the same methods we've been discussing for solving linear equations with one variable.
Video Lectures
Lectures
Sometimes you'll be given an equation or formula with multiple variables and you need to rearrange it so that it's solved for a variable other than you one it started off with. Some of the equations we're going to discuss here aren't strictly linear but the methods used are the same as the ones used to solve linear equations so this is a good point to think about them. (lecture slides)
