2*x^2+21-y^2=0

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Solution for 2*x^2+21-y^2=0 equation:


Simplifying
2x2 + 21 + -1y2 = 0

Reorder the terms:
21 + 2x2 + -1y2 = 0

Solving
21 + 2x2 + -1y2 = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + 2x2 + -21 + -1y2 = 0 + -21

Reorder the terms:
21 + -21 + 2x2 + -1y2 = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 2x2 + -1y2 = 0 + -21
2x2 + -1y2 = 0 + -21

Combine like terms: 0 + -21 = -21
2x2 + -1y2 = -21

Add 'y2' to each side of the equation.
2x2 + -1y2 + y2 = -21 + y2

Combine like terms: -1y2 + y2 = 0
2x2 + 0 = -21 + y2
2x2 = -21 + y2

Divide each side by '2'.
x2 = -10.5 + 0.5y2

Simplifying
x2 = -10.5 + 0.5y2

Reorder the terms:
10.5 + x2 + -0.5y2 = -10.5 + 0.5y2 + 10.5 + -0.5y2

Reorder the terms:
10.5 + x2 + -0.5y2 = -10.5 + 10.5 + 0.5y2 + -0.5y2

Combine like terms: -10.5 + 10.5 = 0.0
10.5 + x2 + -0.5y2 = 0.0 + 0.5y2 + -0.5y2
10.5 + x2 + -0.5y2 = 0.5y2 + -0.5y2

Combine like terms: 0.5y2 + -0.5y2 = 0.0
10.5 + x2 + -0.5y2 = 0.0

The solution to this equation could not be determined.

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