5x^2+9y^2=4

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Solution for 5x^2+9y^2=4 equation: 


Simplifying
5x2 + 9y2 = 4

Solving
5x2 + 9y2 = 4

Solving for variable 'x'.

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

Add '-9y2' to each side of the equation.
5x2 + 9y2 + -9y2 = 4 + -9y2

Combine like terms: 9y2 + -9y2 = 0
5x2 + 0 = 4 + -9y2
5x2 = 4 + -9y2

Divide each side by '5'.
x2 = 0.8 + -1.8y2

Simplifying
x2 = 0.8 + -1.8y2

Reorder the terms:
-0.8 + x2 + 1.8y2 = 0.8 + -1.8y2 + -0.8 + 1.8y2

Reorder the terms:
-0.8 + x2 + 1.8y2 = 0.8 + -0.8 + -1.8y2 + 1.8y2

Combine like terms: 0.8 + -0.8 = 0.0
-0.8 + x2 + 1.8y2 = 0.0 + -1.8y2 + 1.8y2
-0.8 + x2 + 1.8y2 = -1.8y2 + 1.8y2

Combine like terms: -1.8y2 + 1.8y2 = 0.0
-0.8 + x2 + 1.8y2 = 0.0

The solution to this equation could not be determined.

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