7n^2+9=-123

Solution for 7n^2+9=-123 equation:

Simplifying
7n2 + 9 = -123

Reorder the terms:
9 + 7n2 = -123

Solving
9 + 7n2 = -123

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + 7n2 = -123 + -9

Combine like terms: 9 + -9 = 0
0 + 7n2 = -123 + -9
7n2 = -123 + -9

Combine like terms: -123 + -9 = -132
7n2 = -132

Divide each side by '7'.
n2 = -18.85714286

Simplifying
n2 = -18.85714286

Reorder the terms:
18.85714286 + n2 = -18.85714286 + 18.85714286

Combine like terms: -18.85714286 + 18.85714286 = 0.00000000
18.85714286 + n2 = 0.00000000

The solution to this equation could not be determined.