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

### Instruction:
Gabriel is 3 years younger than Frank. The current total of their ages right now is 17. What is Frank's age?

### Response:
 Acha X iwe umri wa Frank.
Hivyo Gabriel ana umri wa X-3.
Jumla ya umri wao ni X + (X-3) = 17 miaka.
2X-3 = 17
2X = 20
X = <<10=10>>10
Hivyo Frank ana umri wa X = <<10=10>>10 miaka.