9x^2+y^2=81

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Solution for 9x^2+y^2=81 equation: 


Simplifying
9x2 + y2 = 81

Solving
9x2 + y2 = 81

Solving for variable 'x'.

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

Add '-1y2' to each side of the equation.
9x2 + y2 + -1y2 = 81 + -1y2

Combine like terms: y2 + -1y2 = 0
9x2 + 0 = 81 + -1y2
9x2 = 81 + -1y2

Divide each side by '9'.
x2 = 9 + -0.1111111111y2

Simplifying
x2 = 9 + -0.1111111111y2

Reorder the terms:
-9 + x2 + 0.1111111111y2 = 9 + -0.1111111111y2 + -9 + 0.1111111111y2

Reorder the terms:
-9 + x2 + 0.1111111111y2 = 9 + -9 + -0.1111111111y2 + 0.1111111111y2

Combine like terms: 9 + -9 = 0
-9 + x2 + 0.1111111111y2 = 0 + -0.1111111111y2 + 0.1111111111y2
-9 + x2 + 0.1111111111y2 = -0.1111111111y2 + 0.1111111111y2

Combine like terms: -0.1111111111y2 + 0.1111111111y2 = 0.0000000000
-9 + x2 + 0.1111111111y2 = 0.0000000000

The solution to this equation could not be determined.

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