SOLUTION: Billy has 20 dollars. He bought 3 twelve packs of soda for z dollars each. Write an expression to represent the money Billy had left.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Billy has 20 dollars. He bought 3 twelve packs of soda for z dollars each. Write an expression to represent the money Billy had left.      Log On