prompt: Michael has $42. Michael gives away half the money to his brother. His brother then buys 3 dollars worth of candy. If his brother has $35 left, how much money, in dollars, did his brother have at first?
messages.content: Michael has $42. Michael gives away half the money to his brother. His brother then buys 3 dollars worth of candy. If his brother has $35 left, how much money, in dollars, did his brother have at first?
messages.role: user
messages.content: Michael gives away 42/2=<<42/2=21>>21 dollars.
  Before buying candy, his brother has 35+3=<<35+3=38>>38 dollars.
  His brother had 38-21=<<38-21=17>>17 dollars at first.
  #### 17
messages.role: assistant