two gym offer a two-month "boot camp" training program.one charges $4 per session plus one-time $50 fee.The other charges $6 per session plus a one-time a one-time $30 fee.For what number of sessions is the cost of the program the same for each gym
Call S the number of sessions that will equalize the cost
4S + 50 = 6S + 30
50 - 30 = 6S - 4S
20 = 2S divide both sides by 2
10 = S ......10 sessions will equalize the cost
