-12+7x^2=0

Solution for -12+7x^2=0 equation:

Simplifying
-12 + 7x2 = 0

Solving
-12 + 7x2 = 0

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 7x2 = 0 + 12

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

Combine like terms: 0 + 12 = 12
7x2 = 12

Divide each side by '7'.
x2 = 1.714285714

Simplifying
x2 = 1.714285714

Take the square root of each side:
x = {-1.309307341, 1.309307341}