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

### Instruction:
John's pool is 5 feet deeper than 2 times Sarah’s pool. If John’s pool is 15 feet deep, how deep is Sarah’s pool?

### Response:
 Hebu x iwe idadi ya futi katika dimbwi la John
2*x + 5=15
2x=10
x=<<5=5>>5