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

### Instruction:
 Jerry alilipa sehemu ya madeni yake. Miezi miwili iliyopita, alilipa $12 wakati mwezi uliopita, alilipa $3 zaidi. Ikiwa deni lake lilikuwa $50 jumla, anapaswa kulipa kiasi gani bado?


### 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.