-9x^2+1=0

Solution for -9x^2+1=0 equation:

Simplifying
-9x2 + 1 = 0

Reorder the terms:
1 + -9x2 = 0

Solving
1 + -9x2 = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + -9x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -9x2 = 0 + -1
-9x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-9x2 = -1

Divide each side by '-9'.
x2 = 0.1111111111

Simplifying
x2 = 0.1111111111

Take the square root of each side:
x = {-0.333333333, 0.333333333}