Answer: n + 2n - 6 = 12
Explanation:
The number is n.
Six less than twice the number can be expressed as = 2n - 6
Adding those together will be; n + 2n - 6
They add up to 12 so the equation is;
n + 2n - 6 = 12
You said I don't need to solve but the number is 6 just in case.