conversations.from: human
conversations.value: I need help with this problem:
  Bonny just bought her 13th pair of shoes, which is 5 less than twice as many pairs of shoes as Becky owns.  Bobby has 3 times as many pairs of shoes as Becky has.  How many shoes does Bobby have?
conversations.from: assistant
conversations.value: Let x be the number of pairs of shoes that Becky owns.
  Since 13 pairs is 5 less than twice as many pairs as Becky owns, then the relationship is 2x-5=13.
  Adding 5 to each side of the equation, we get 2x=18.
  Solving for x, we get x=9.
  Since Bobby has 3 times as many pairs of shoes as Becky has, then Becky has 3*9=27 pairs of shoes.