3n^2+6=123

Solution for 3n^2+6=123 equation:

Simplifying
3n2 + 6 = 123

Reorder the terms:
6 + 3n2 = 123

Solving
6 + 3n2 = 123

Solving for variable 'n'.

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

Add '-6' to each side of the equation.
6 + -6 + 3n2 = 123 + -6

Combine like terms: 6 + -6 = 0
0 + 3n2 = 123 + -6
3n2 = 123 + -6

Combine like terms: 123 + -6 = 117
3n2 = 117

Divide each side by '3'.
n2 = 39

Simplifying
n2 = 39

Take the square root of each side:
n = {-6.244997998, 6.244997998}