7x*x-18+12=0

Solution for 7x*x-18+12=0 equation:

Simplifying
7x * x + -18 + 12 = 0

Multiply x * x
7x2 + -18 + 12 = 0

Reorder the terms:
-18 + 12 + 7x2 = 0

Combine like terms: -18 + 12 = -6
-6 + 7x2 = 0

Solving
-6 + 7x2 = 0

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 7x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 7x2 = 0 + 6
7x2 = 0 + 6

Combine like terms: 0 + 6 = 6
7x2 = 6

Divide each side by '7'.
x2 = 0.8571428571

Simplifying
x2 = 0.8571428571

Take the square root of each side:
x = {-0.9258201, 0.9258201}