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

### Instruction:
Jerry paid off some of his debts. Two months ago, he paid $12 while last month, he paid $3 more. If his debt was $50 in all, how much does he still have to pay?

### Response:
 Miezi miwili iliyopita, alilipa $12.
Mwezi uliopita, alilipa $3 zaidi.
Kwa hiyo, jumla ya kiasi alicholipa ni $12 + $3 = $<<12+3=15>>15.
Bado anapaswa kulipa $50 - $15 = $<<50-15=35>>35.