conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Wilson goes to a fast-food restaurant. He buys 2 hamburgers for $5 each and 3 bottles of cola for $2 each. Wilson uses his $4 discount coupon. How much money does he pay in total?
conversations.from: assistant
conversations.value: 2 hamburgers cost 2*5=$10
  3 bottles of cola cost 3*2=$6
  The total price without discount is 10+6=$16
  With the discount coupon, it's 16-4=$12