x^2+y^2=7

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


Simplifying
x2 + y2 = 7

Solving
x2 + y2 = 7

Solving for variable 'x'.

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

Add '-1y2' to each side of the equation.
x2 + y2 + -1y2 = 7 + -1y2

Combine like terms: y2 + -1y2 = 0
x2 + 0 = 7 + -1y2
x2 = 7 + -1y2

Simplifying
x2 = 7 + -1y2

Reorder the terms:
-7 + x2 + y2 = 7 + -1y2 + -7 + y2

Reorder the terms:
-7 + x2 + y2 = 7 + -7 + -1y2 + y2

Combine like terms: 7 + -7 = 0
-7 + x2 + y2 = 0 + -1y2 + y2
-7 + x2 + y2 = -1y2 + y2

Combine like terms: -1y2 + y2 = 0
-7 + x2 + y2 = 0

The solution to this equation could not be determined.

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