7x^2+4y^2=28

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Solution for 7x^2+4y^2=28 equation: 


Simplifying
7x2 + 4y2 = 28

Solving
7x2 + 4y2 = 28

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.
7x2 + 4y2 + -4y2 = 28 + -4y2

Combine like terms: 4y2 + -4y2 = 0
7x2 + 0 = 28 + -4y2
7x2 = 28 + -4y2

Divide each side by '7'.
x2 = 4 + -0.5714285714y2

Simplifying
x2 = 4 + -0.5714285714y2

Reorder the terms:
-4 + x2 + 0.5714285714y2 = 4 + -0.5714285714y2 + -4 + 0.5714285714y2

Reorder the terms:
-4 + x2 + 0.5714285714y2 = 4 + -4 + -0.5714285714y2 + 0.5714285714y2

Combine like terms: 4 + -4 = 0
-4 + x2 + 0.5714285714y2 = 0 + -0.5714285714y2 + 0.5714285714y2
-4 + x2 + 0.5714285714y2 = -0.5714285714y2 + 0.5714285714y2

Combine like terms: -0.5714285714y2 + 0.5714285714y2 = 0.0000000000
-4 + x2 + 0.5714285714y2 = 0.0000000000

The solution to this equation could not be determined.

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