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

### Instruction:
 Ben ana mayai 20 kwenye friji. Jana, alikula mayai 4 asubuhi na 3 mchana. Ben ana mayai mangapi sasa?


### Response:
 Ben alikula mayai 3 + 4 = <<3+4=7>>7 jana.
Hivyo atabakiwa na mayai 20 - 7 = <<20-7=13>>13.