conversations.from: human
conversations.value: Sara and Joe have a combined height of 120 inches. Joe is 6 inches more than double Sara's height. How tall is Joe?
conversations.from: assistant
conversations.value: Let x be Sara's height in inches
  Joe is 6+2x inches tall
  120=x+(6+2x)
  120=3x+6
  114=3x
  x=38 inches
  Joe is 6+2(38)=82 inches