x^2+21-y^2=0

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


Simplifying
x2 + 21 + -1y2 = 0

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

Solving
21 + x2 + -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 + x2 + -21 + -1y2 = 0 + -21

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

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

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

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

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

Simplifying
x2 = -21 + y2

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

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

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

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

The solution to this equation could not be determined.

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