Ben was in charging ordering 36 pizzas for the office party. He ordered three types of pizzas: Cheese, pepperoni, and supreme. The cheese pizza cost $6, the pepperoni pizzas cost $9 each, and the supreme pizzas cost $12 each. He spent exactly twice as much on pizzas. If Ben spent a total of $312 on pizzas. How many pizzas of each type did he buy?

Ben ordered:

cheese=

pepperoni=

supreme=