prompt: Antoinette weighs 7 less kilograms than twice Rupert's weight. Together they weigh 98 kilograms. How many kilograms does Antoinette weigh?
messages.content: Antoinette weighs 7 less kilograms than twice Rupert's weight. Together they weigh 98 kilograms. How many kilograms does Antoinette weigh?
messages.role: user
messages.content: Let R = Rupert's weight
  Antoinette = 2R - 7
  R + 2R - 7 = 98
  3R = 105
  Rupert = <<35=35>>35 kg
  Antoinette = 2 * 35 - 7 = <<2*35-7=63>>63 kg
  Antoinette weighs 63 kilograms.
  #### 63
messages.role: assistant