I need help with this math!?

Question

3N/8-3/4=N-4/2 | 5/n+2=3/2n | 5x^2=80 | 4x(x+1)=3

Answer 1

I'm guessing what you want to do is solve four different equations.

The first one should be easy if you collect terms (unless you don't know how to handle fractions).

For the second, multiply both sides by n and see where you are.

For the third, divide both sides by 5 and see where you are.

For the fourth, multiply out the left hand side, subtract 3 from both sides, and then you'll have a quadratic equation you should be able to solve.

If you have trouble on any one of these, please ask again about it separately.