3n^2-9=3

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Solution for 3n^2-9=3 equation: 


Simplifying
3n2 + -9 = 3

Reorder the terms:
-9 + 3n2 = 3

Solving
-9 + 3n2 = 3

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 + 3n2 = 3 + 9

Combine like terms: -9 + 9 = 0
0 + 3n2 = 3 + 9
3n2 = 3 + 9

Combine like terms: 3 + 9 = 12
3n2 = 12

Divide each side by '3'.
n2 = 4

Simplifying
n2 = 4

Take the square root of each side:
n = {-2, 2}

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