Help me write and solve an equation, please?
You are a member of your local movie theater's club. Every time you see a move at the theater, you earn 2 advantage points. When you earn 100 points, you get a free movie pass. Currently you have 40 advantage points.
Write an equation to model the number of movies (m) you have to watch before you can earn a free movie pass.
Solve the equation, show your work.
(Can somebody please show the steps of how to write and solve this equation?)