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

### Instruction:
In the second hour of a storm it rains 7 inches more than twice the amount it rained the first hour. The total amount of rain in the first two hours is 22 inches. How much did it rain in the first hour?

### Response:
 ให้ x เป็นปริมาณฝนในชั่วโมงแรก
ฝนตก 2x+7 นิ้วในชั่วโมงที่สอง
x+2x+7=22
3x+7=22
3x=15
x=<<5=5>>5 นิ้ว