Plane phone or solve x

Question

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a monthly fee and charges an additional for each minute of calls. The second plan has a 19 monthly fee and charges an additional 14 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

Answer 1

You need to provide additional details on what the first plan charges in terms of monthly fee and per minute. Otherwise, the problem makes no sense.