conversations.from: human
conversations.value: The red rope was four times the length of the blue rope. The blue rope was 7 centimeters shorter than the yellow rope. If the 3 ropes had a combined length of 37 centimeters, what was the length of the red rope in centimeters?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Let Y = the length of the yellow rope in centimeters
  Blue rope = Y - 7
  Red rope = 4 * (Y - 7)
  Y + Y - 7 + 4 (Y - 7) = 37 cm
  6Y - 35 = 37
  6Y = 72
  Y = 12 cm
  The red rope was 20 cm long.