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

### Instruction:
A pet store owner had 12 birds, 9 puppies, 5 cats, and 15 spiders. Half the birds were sold and 3 puppies were adopted. Then, someone left the spider enclosure open and 7 of them went loose. How many animals does the pet store owner have left?

### Response:
 12/2 = <<12/2=6>>6 นกถูกขายไป
มีลูกสุนัขที่เหลืออยู่ 9-3= <<9-3=6>>6 ตัว
มีแมงมุมที่เหลืออยู่ 15 - 7 = <<15-7=8>>8 ตัว
เจ้าของร้านขายสัตว์เลี้ยงมีสัตว์ทั้งหมด 6+6+5 + 8 = <<6+6+5+8=25>>25 ตัว