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

### Instruction:
 Steve anashikilia noti za nickel na dime mkononi mwake. Ana dimes 4 zaidi ya nickels. Ana jumla ya senti 70 mkononi mwake. Anashikilia nickels ngapi?


### Response:
 Hebu x iwe idadi ya nickels anazoshikilia.
Nickels zake zina thamani ya 5 * x = 5x senti.
Ana dimes x+4.
Dimes zina thamani ya 10 * (x+4) = 10x+40 senti.
Thamani jumla ya nickels na dimes ni 5x + 10x + 40 = 70 senti.
Kwa kuunganisha vipengele sawa, tunapata 15x + 40 = 70.
Kwa kutoa 40 kutoka pande zote mbili, tunapata 15x = 30.
Kwa kugawanya pande zote mbili kwa 15, tunapata x = 2, hivyo anashikilia nickels 2.