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

### Instruction:
Noemi lost $400 on roulette and $500 on blackjack. How much money did Noemi begin with if she still had $800 in her purse?

### Response:
 Jumla ya pesa alizopoteza ni $400+$500 = $<<400+500=900>>900
Ikiwa alibaki na $900, mwanzoni alikuwa na $900+$800 = $<<900+800=1700>>1700