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

### Instruction:
Micah has 7 fish in his aquarium. Kenneth has three times as many fish in his aquarium and Matthias has 15 less fish than Kenneth in his aquarium. How many fish do the boys have in total?

### Response:
 Kenneth ana samaki 7 x 3 = <<7*3=21>>21 katika bwawa lake la samaki.
Matthias ana samaki 21 - 15 = <<21-15=6>>6 katika bwawa lake la samaki.
Jumla, watoto wana samaki 7 + 21 + 6 = <<7+21+6=34>>34.