<human>:  Betsy and Donovan made a meal together. Betsy's part took 18 minutes longer than Donovan's part. The meal was made in 98 minutes. How many minutes long was Betsy's part?
<bot>: Define a variable ** Let D = Donovan's time in minutes
How long was Betsy's part? ** Betsy = D + <<+18=18>>18
Write an equation ** 2D + 18 = 98
Simplify ** 2D = 80
Simplify ** D = <<40=40>>40
How long was Betsy's part? ** Betsy = 40 + 18 = <<40+18=58>>58 minutes
How many minutes long was Betsy's part? ** Betsy's part took 58 minutes.
#### 58