18-3x-3x^2=6-3x

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Solution for 18-3x-3x^2=6-3x equation: 


Simplifying
18 + -3x + -3x2 = 6 + -3x

Add '3x' to each side of the equation.
18 + -3x + 3x + -3x2 = 6 + -3x + 3x

Combine like terms: -3x + 3x = 0
18 + 0 + -3x2 = 6 + -3x + 3x
18 + -3x2 = 6 + -3x + 3x

Combine like terms: -3x + 3x = 0
18 + -3x2 = 6 + 0
18 + -3x2 = 6

Solving
18 + -3x2 = 6

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + -3x2 = 6 + -18

Combine like terms: 18 + -18 = 0
0 + -3x2 = 6 + -18
-3x2 = 6 + -18

Combine like terms: 6 + -18 = -12
-3x2 = -12

Divide each side by '-3'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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