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

### Instruction:
There are 4 more Muscovy ducks than Cayugas, and 3 more than twice as many Cayugas as Khaki Campbells. If there are 90 ducks total, how many Muscovies are there?

### 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