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

### Instruction:
 Lily alikuwa na $55 kwenye akaunti yake. Alikuja kutumia $7 kwenye shati. Kisha akaenda dukani lingine na kutumia mara tatu ya kiasi alichotumia kwenye shati. Kiasi gani cha pesa kimesalia kwenye akaunti ya Lily?


### Response:
 Lily alitumia 7 * 3 = <<7*3=21>>21 kwenye duka lingine.
Hivyo, yeye ana 55 - 21 - 7 = <<55-21-7=27>>27 zilizosalia kwenye akaunti yake.