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

### Instruction:
Lily had $55 in her account. She spent $7 on a shirt. She then went to another shop and spent thrice as much as she spent on a shirt. How much money is left in Lily's account?

### 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.