conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Five shirts together cost $85. Of the 5 shirts, there are 3 shirts that cost $15 each. If the remaining shirts are each equal in value, what is the cost, in dollars, of one of the remaining shirts?
conversations.from: assistant
conversations.value: The first 3 shirts cost 15*3=45 dollars in total.
  There are 5-3=2 shirts remaining.
  The remaining 2 shirts cost 85-45=40 dollars in total.
  One of the remaining shirts costs 40/2=20 dollars.