3x^2+9-18=-6

Solution for 3x^2+9-18=-6 equation:

Simplifying
3x2 + 9 + -18 = -6

Reorder the terms:
9 + -18 + 3x2 = -6

Combine like terms: 9 + -18 = -9
-9 + 3x2 = -6

Solving
-9 + 3x2 = -6

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 + 3x2 = -6 + 9

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

Combine like terms: -6 + 9 = 3
3x2 = 3

Divide each side by '3'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}