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

### Instruction:
Ben has 20 eggs in the fridge. Yesterday, he ate 4 eggs in the morning and 3 in the afternoon. How many eggs does Ben have now?

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