(12x^2+6x-6)-(12x^2+9x+3)=

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


Simplifying
(12x2 + 6x + -6) + -1(12x2 + 9x + 3) = 0

Reorder the terms:
(-6 + 6x + 12x2) + -1(12x2 + 9x + 3) = 0

Remove parenthesis around (-6 + 6x + 12x2)
-6 + 6x + 12x2 + -1(12x2 + 9x + 3) = 0

Reorder the terms:
-6 + 6x + 12x2 + -1(3 + 9x + 12x2) = 0
-6 + 6x + 12x2 + (3 * -1 + 9x * -1 + 12x2 * -1) = 0
-6 + 6x + 12x2 + (-3 + -9x + -12x2) = 0

Reorder the terms:
-6 + -3 + 6x + -9x + 12x2 + -12x2 = 0

Combine like terms: -6 + -3 = -9
-9 + 6x + -9x + 12x2 + -12x2 = 0

Combine like terms: 6x + -9x = -3x
-9 + -3x + 12x2 + -12x2 = 0

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

Solving
-9 + -3x = 0

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -3x = 0 + 9

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

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

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

Simplifying
x = -3

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