Write a function `subtract_elements` that takes in two tuples of numbers and returns a new tuple where each element is the result of subtracting the corresponding element of the second tuple from the first tuple.
#### Example Usage
```python [main.nopy]
result = subtract_elements((10, 4, 5), (2, 5, 18))
print(result) # Output: (8, -1, -13)
result = subtract_elements((7, 18, 9), (10, 11, 12))
print(result) # Output: (-3, 7, -3)
```
#### Constraints
- Both input tuples will have the same length.
- The tuples will only contain numeric values (integers or floats).