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

### Instruction:
Alvin is 30 years old and Simon is 5 years away from being 1/2 the age of Alvin.  How old is Simon?

### Response:
 Alvin: miaka 30
Simon: (1/2)*30-5 = <<30/2-5=10>>10 miaka