3n^2-90.75=0

Solution for 3n^2-90.75=0 equation:

Simplifying
3n2 + -90.75 = 0

Reorder the terms:
-90.75 + 3n2 = 0

Solving
-90.75 + 3n2 = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '90.75' to each side of the equation.
-90.75 + 90.75 + 3n2 = 0 + 90.75

Combine like terms: -90.75 + 90.75 = 0.00
0.00 + 3n2 = 0 + 90.75
3n2 = 0 + 90.75

Combine like terms: 0 + 90.75 = 90.75
3n2 = 90.75

Divide each side by '3'.
n2 = 30.25

Simplifying
n2 = 30.25

Take the square root of each side:
n = {-5.5, 5.5}