Question

Cell phone plan A costs $70 per month and comes with a free $500 phone. Cell phone Plan B costs $50 per month but does not come with a phone. If you buy the $500 phone and choose Plan B, how many months is it untol your cost is the same as Plan A's?

Answer 1

25 months

Explanation:

if x is the months, your equation will be

70x = 50x + 500

20x = 500

x = 25