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

### Instruction:
John has just turned 39.  3 years ago, he was twice as old as James will be in 6 years.  If James' older brother is 4 years older than James, how old is James' older brother?

### Response:
James is 6 years younger than John.
So, his older brother is 4 years older than James.
Thus, his age is 6 + 4 = <<6+4=10>>10 years.
#### 10

