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

### 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:
 ต้นไม้ถูกปลูกไปแล้ว 9 - 4 = <<9-4=5>>5 ปี
จะใช้เวลาอีก 7 - 5 = <<7-5=2>>2 ปีในการออกผล
ลิเดียจะอายุ 9 + 2 = 11 ปี