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Simplifying
4x2 = 12x2
Solving
4x2 = 12x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12x2' to each side of the equation.
4x2 + -12x2 = 12x2 + -12x2
Combine like terms: 4x2 + -12x2 = -8x2
-8x2 = 12x2 + -12x2
Combine like terms: 12x2 + -12x2 = 0
-8x2 = 0
Divide each side by '-8'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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