g^2-3=9

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Solution for g^2-3=9 equation: 


Simplifying
g2 + -3 = 9

Reorder the terms:
-3 + g2 = 9

Solving
-3 + g2 = 9

Solving for variable 'g'.

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

Add '3' to each side of the equation.
-3 + 3 + g2 = 9 + 3

Combine like terms: -3 + 3 = 0
0 + g2 = 9 + 3
g2 = 9 + 3

Combine like terms: 9 + 3 = 12
g2 = 12

Simplifying
g2 = 12

Take the square root of each side:
g = {-3.464101615, 3.464101615}

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