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

### Instruction:
 Yun alikuwa na kipande cha karatasi 20 mwanzoni, lakini kisha akapoteza 12. Marion ana 1/4 zaidi ya kile ambacho Yun ana sasa, pamoja na 7. Marion ana kipande cha karatasi ngapi?


### Response:
 Yun ana kipande cha karatasi 20-12 = <<20-12=8>>8
Marion ana kipande cha karatasi 8/4 + 7 = <<8/4+7=9>>9