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

### Instruction:
Keith and Blaine went fishing. Blaine caught 5 fish while Keith caught twice as many as Blaine's. How many fish did they catch together?

### Response:
 คีธตกปลาได้ 5 x 2 = <<5*2=10>>10 ตัว
ดังนั้น พวกเขาตกปลาทั้งหมด 5 + 10 = <<5+10=15>>15 ตัว