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

### Instruction:
Faith's neighborhood, with a total of 20 homes, decided to install solar panels. Each home needed 10 panels capable of providing their power needs. The supplier of the panels brought 50 panels less than the required amount. The neighbors agreed to only install the panels up to where they'd be finished. How many homes had their panels installed?

### Response:
 Jumla ya paneli zinazohitajika kwa nyumba 20 ni 20*10 = <<20*10=200>>200 paneli.
Wakati 50 hazikuletwa, jumla ya paneli zilizopo kwa matumizi ilikuwa 200-50 = <<200-50=150>>150 paneli.
Kama kila nyumba inahitaji paneli 10, idadi ya nyumba zilizo na paneli zilizowekwa ni 150/10 = <<150/10=15>>15 nyumba.