How do I solve this:

3 n
- + - =2
8 4

Your formula is unclear. Do you mean

3n - 8 + 4 = 2?

If so, combine the numerical terms on the right sideof the equation and then divide both sides by 3 to get the value of n.

If you mean 3n divided by 84 (3n/84) = 2, multiply both sides by 84 and divide both sides by 3.

I hope this helps. Thanks for asking.