9x^2+21-20=0

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Solution for 9x^2+21-20=0 equation:


Simplifying
9x2 + 21 + -20 = 0

Reorder the terms:
21 + -20 + 9x2 = 0

Combine like terms: 21 + -20 = 1
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

Reorder the terms:
0.1111111111 + x2 = -0.1111111111 + 0.1111111111

Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000
0.1111111111 + x2 = 0.0000000000

The solution to this equation could not be determined.

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