Question

Angie and Kenny play online video games.Angie buys 1 software package and 3 months of game play. Kenny buys 1 software package and 4 months of game play. Each software package costs $40. If their total cost is $157, what is the cost of one month of game play?

Answer 1

Each month of game play costs $11.
s=software package
m=months of game play
2s+7m=$157
2($40)+7m=$157
$80+7m=$157
7m=$77
m=$11