MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
The easiest way to start substitution is to find a variable that has a coefficient of one. Get that variable isolated in one equation, and substitute the resulting expression into both other equations. You will need to be extremely precise with +, - signs and distributing, but if done correctly, you can use this substitution to turn a 3 x 3 system into a much more approachable 2 x 2 system.
Transcript Coming Soon!
