Answer:3(n-8) or 3(8-n)
Explanation:
For this question, given that the unknown number is n, the difference of that and 8 is with 8 - n or n - 8, that depends on n, if n is more than 8, then it is n - 8, 8 - n otherwise. But we do not know what n is so it is considered both. After that they said 3 times so it is 3(n-8) or 3(8-n)