3x^2+9x^2=

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Solution for 3x^2+9x^2= equation: 


Simplifying
3x2 + 9x2 = 0

Combine like terms: 3x2 + 9x2 = 12x2
12x2 = 0

Solving
12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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