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

### Instruction:
 阿迈德今年11岁，福阿德今年26岁。福阿德的年龄将在多少年后是阿迈德目前年龄的两倍？


### Response:
 假设X是福阿德的年龄是阿迈德年龄的两倍之前的年数。
所以 (X+11)*2 = X+26。
所以 X*2 + 22 = X + 26。
所以 X = 26 - 22
所以 X = <<4=4>>4年。