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

### Instruction:
 Kwenye sherehe ya kuzaliwa, kuna maballoni 20 ya rangi nyekundu na maballoni 15 ya rangi ya kijani. Kabla ya sherehe kuanza, maballoni 3 ya rangi nyekundu na maballoni 2 ya rangi ya kijani yalipasuka. Maballoni mangapi yamesalia?


### Response:
 Kuna jumla ya maballoni 20 + 15 = <<20+15=35>>35 kwenye sherehe.
Kati ya hayo, maballoni 3 + 2 = 5 yalipasuka.
Hivyo, kuna maballoni 35 - 5 = <<35-5=30>>30 yaliyosalia.