ANSWERS
1. 40 + 2m = 100
2. 30
Step-by-step explanation
1. We know that you earn 2 advantage points for every movie you watch. Thus, if you watch m movies, you will get 2m advantage points.
Until now, you have 40 points and you need to have 100 points to earn a free movie pass, The sum of the 2m points from watching m movies and the 40 points you already have must be 100,
2. To solve this equation, first, we have to subtract 40 from both sides of the equation,
And then, divide both sides by 2,
Hence, to earn the free movie pass, you will have to watch 30 movies.