Please help, I don't get the question.

Question

One cellular phone carrier charges $26.50 a month plus $0.15 a minute for local calls. Another carrier charges $14.50 a month and $0.25 a minute for local calls. For how many minutes is the cost of the plans the same?

Answer 1

Basically, there is a base charge of whether you use minutes or not. For example, the first carrier charges 

26.50 + 0.15*x

where "x" is the number of minutes used. The second one does:

14.5 + 0.25*x

We know for some "x" minutes they are equal. So, let us set them equal and solve for x.

26.50 + 0.15*x = 14.5 + 0.25*x

Solving this for x you would find: x = 120 minutes.

Answer 2

m represents the number of minutes

26.50 + 0.15m = 14.50 + 0.25m

 

Can you solve for m?