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

### Instruction:
Issac has to buy pens and pencils for the upcoming school year. Issac buys 108 writing utensils total. He buys 12 more than 5 times the number of pencils than pens. How many pens did Issac buy?

### Response:
 Hebu x iwe idadi ya kalamu alizonunua
Alinunua penseli 12+5x
x+(12+5x)=108
6x+12=108
6x=96
x=<<16=16>>16 kalamu