Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Joe saves $6,000 for his trip to Australia. If he spends $1,200 on the flight, $800 on a hotel, and $3,000 on food, how much money, in dollars, does he have left?

### Response:
 ถ้าโจออมเงิน 6,000 ดอลลาร์ แล้วรายจ่ายทั้งหมดคือ 6,000 - 1,200 - 800 - 3,000 = 2,000 ดอลลาร์