conversations.from: human
conversations.value: I would love to understand how to solve this problem: Stacy is a high school Calculus teacher.  She assigns 45 problems for homework.  There are twice as many multiple choice problems as free response, and 7 more free response than true/false.  How many true/false questions are there?
  Can you explain?
conversations.from: assistant
conversations.value: Let x represent the number of true/false questions
  Free response:x+7
  Multiple choice: 2(x+7)=2x+14
  Total:x+x+7+2x+14=45
  4x+21=45
  4x=24
  x=6 true/false questions