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

### Instruction:
Erin counts six trolls hiding by the path in the forest, 6 less than four times that number of trolls hiding under the bridge, and half as many trolls hiding in the plains as under the bridge. How many trolls did she count in total?

### Response:
 ให้ x เป็นจำนวนโทรลที่ซ่อนอยู่ใต้สะพาน
โดยทางเดิน: 6
ใต้สะพาน: x
ในทุ่ง: x/2
รวม: 6+x+x/2
6+2x+x/2=6+2x+x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2
6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2=6+3x/2