Next, identify the male's age and replace "X" with it. Suppose Jim was 15. We write it like this:
Now, the Order of Operations principal applies here! Divide one by the two to get one half, and then find half of fifteen. Don't forget to keep the seven; It would be disgusting if Jim dated a 7.5 year old!
Add the number, matching up the place value carefully, and there you have it; Jim may date a 14.5 year old girl if he went for younger women.
Etc... So on, and so on. The coefficient is 1/2, while the constant is 7.