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

### Instruction:
 Kuna bata Muscovy 4 zaidi ya Cayugas, na 3 zaidi ya mara mbili ya Cayugas kuliko Khaki Campbells. Ikiwa kuna bata 90 jumla, kuna Muscovy wangapi?


### Response:
 Hebu x iwe idadi ya Cayugas. Kisha, idadi ya Khaki Campbells ni (1/2)x. Idadi ya Muscovy ni x + 4. Kwa hiyo x + x+4 + x+4+3 = 90 3x + 11 = 90 3x = 90 - 11 3x = 79 x = 79 / 3 x = 26