SOLUTION: A textbook store sold a combined total of 327 chemistry and physics textbooks in a week. The number of physics textbooks sold was 77 less than the number of chemistry textbooks sol

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: A textbook store sold a combined total of 327 chemistry and physics textbooks in a week. The number of physics textbooks sold was 77 less than the number of chemistry textbooks sol      Log On