16x^2+4y^2=81

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Solution for 16x^2+4y^2=81 equation: 


Simplifying
16x2 + 4y2 = 81

Solving
16x2 + 4y2 = 81

Solving for variable 'x'.

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

Add '-4y2' to each side of the equation.
16x2 + 4y2 + -4y2 = 81 + -4y2

Combine like terms: 4y2 + -4y2 = 0
16x2 + 0 = 81 + -4y2
16x2 = 81 + -4y2

Divide each side by '16'.
x2 = 5.0625 + -0.25y2

Simplifying
x2 = 5.0625 + -0.25y2

Reorder the terms:
-5.0625 + x2 + 0.25y2 = 5.0625 + -0.25y2 + -5.0625 + 0.25y2

Reorder the terms:
-5.0625 + x2 + 0.25y2 = 5.0625 + -5.0625 + -0.25y2 + 0.25y2

Combine like terms: 5.0625 + -5.0625 = 0.0000
-5.0625 + x2 + 0.25y2 = 0.0000 + -0.25y2 + 0.25y2
-5.0625 + x2 + 0.25y2 = -0.25y2 + 0.25y2

Combine like terms: -0.25y2 + 0.25y2 = 0.00
-5.0625 + x2 + 0.25y2 = 0.00

The solution to this equation could not be determined.

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