Equazioni Semplici

Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2wy/ Esercizi: http://www.khanacademy.org/exercises?exid=writing_expressions_1 Traduzione in Italiano del video Simple Equations http://www.youtube.com/watch?v=9Ek61w1LxSc http://www.khanacademy.org/video/simple-equations?playlist=Algebra Help us caption & translate this video! http://amara.org/v/B2wy/