conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Jim collects model cars, and he has 301 models total.  Jim has 4 times as many Buicks as Fords, and 3 more than twice the number of Fords than Chevys.  How many Buicks does Jim have?
conversations.from: assistant
conversations.value: Let x represent the number of Chevys
  Fords:3+2x
  Buicks:4(3+2x)=12+8x
  Total:x+3+2x+12+8x=301
  11x+15=301
  11x=286
  x=26
  Buicks:12+8(26)=220