Word problem:
A health club is offering two new membership plans. Plan A costs 56$ per month for unlimited use. Plan B costs 20$ per month plus 3$ for every visit. How many visits to the club must Doug make per month in order for plan A to be the same cost as plan B?

First you have to get the difference between plan A and plan B. So take $56 minus $20 to get your difference.

Now take your difference and divide it by the $3 for every visit to get the number of visits needed.