conversations.from: human
conversations.value: I would love to understand how to solve this problem: Jed collects stamp cards. Every week, he gets 6 cards. But every two weeks, he gives 2 cards to his friends. If Jed started with 20 cards, after how many weeks will he have a total of 40 cards?
  Can you explain?
conversations.from: assistant
conversations.value: In the first week, Jed has 20 + 6 = 26 cards.
  In the second week, he has 26 + 6 = 32 cards.
  But he is left with 32 - 2 = 30 cards on the 2nd week after giving 2 cards to his friend.
  Then Jed has 30 + 6 = 36 cards on the 3rd week.
  He has 36 + 6 = 42 cards on the 4th week.
  After giving his friend 2 cards, he is then left with 42 - 2 = 40 cards on the 4th week.
  Hence, Jed will have a total of 40 cards in 4 weeks.