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

### Instruction:
It takes 7 years for an apple tree to bear fruit. If Lydia planted a tree when she was 4 years old and is now 9 years old, how old would she be when she gets to eat an apple from her tree for the first time?

### Response:
 Mti umepandwa kwa miaka 9 - 4 = <<9-4=5>>5
Itachukua miaka mingine 7 - 5 = <<7-5=2>>2 kwa mti huo kuzaa matunda
Lydia atakuwa na umri wa miaka 9 + 2 = 11