n^2-8+12=9

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Solution for n^2-8+12=9 equation: 


Simplifying
n2 + -8 + 12 = 9

Reorder the terms:
-8 + 12 + n2 = 9

Combine like terms: -8 + 12 = 4
4 + n2 = 9

Solving
4 + n2 = 9

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + n2 = 9 + -4

Combine like terms: 4 + -4 = 0
0 + n2 = 9 + -4
n2 = 9 + -4

Combine like terms: 9 + -4 = 5
n2 = 5

Simplifying
n2 = 5

Take the square root of each side:
n = {-2.236067978, 2.236067978}

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