Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching How to simplify a big expression by combining like terms | Algebra I | Khan Academy. and this video is uploaded by Khan Academy at 2012-07-24T13:41:34-07:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [1DgDt6gCUKs]