Divide the given group of numbers into two groups such that the numbers in each group have the same mean.
3, 5, 6, 7, 9
Group 1: 5, 6, 7 
Group 2: 3, 9
Both groups have the same mean (5 + 6 + 7)/3 = (3 + 9)/2 = 6
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Divide the given group of numbers into two groups such that the numbers in each group have the same mean.

### Response:
Group 1: 5, 6, 7 
Group 2: 3, 9
Both groups have the same mean (5 + 6 + 7)/3 = (3 + 9)/2 = 6