3x^2=6x^2+9x-63-12x-3x^2

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Solution for 3x^2=6x^2+9x-63-12x-3x^2 equation:


Simplifying
3x2 = 6x2 + 9x + -63 + -12x + -3x2

Reorder the terms:
3x2 = -63 + 9x + -12x + 6x2 + -3x2

Combine like terms: 9x + -12x = -3x
3x2 = -63 + -3x + 6x2 + -3x2

Combine like terms: 6x2 + -3x2 = 3x2
3x2 = -63 + -3x + 3x2

Add '-3x2' to each side of the equation.
3x2 + -3x2 = -63 + -3x + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
0 = -63 + -3x + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
0 = -63 + -3x + 0
0 = -63 + -3x

Solving
0 = -63 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
0 + 3x = -63 + -3x + 3x
Remove the zero:
3x = -63 + -3x + 3x

Combine like terms: -3x + 3x = 0
3x = -63 + 0
3x = -63

Divide each side by '3'.
x = -21

Simplifying
x = -21

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