x^2+y^2-2y-15=0

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Solution for x^2+y^2-2y-15=0 equation:


Simplifying
x2 + y2 + -2y + -15 = 0

Reorder the terms:
-15 + x2 + -2y + y2 = 0

Solving
-15 + x2 + -2y + y2 = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + x2 + -2y + 15 + y2 = 0 + 15

Reorder the terms:
-15 + 15 + x2 + -2y + y2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + x2 + -2y + y2 = 0 + 15
x2 + -2y + y2 = 0 + 15

Combine like terms: 0 + 15 = 15
x2 + -2y + y2 = 15

Add '2y' to each side of the equation.
x2 + -2y + 2y + y2 = 15 + 2y

Combine like terms: -2y + 2y = 0
x2 + 0 + y2 = 15 + 2y
x2 + y2 = 15 + 2y

Add '-1y2' to each side of the equation.
x2 + y2 + -1y2 = 15 + 2y + -1y2

Combine like terms: y2 + -1y2 = 0
x2 + 0 = 15 + 2y + -1y2
x2 = 15 + 2y + -1y2

Simplifying
x2 = 15 + 2y + -1y2

Reorder the terms:
-15 + x2 + -2y + y2 = 15 + 2y + -1y2 + -15 + -2y + y2

Reorder the terms:
-15 + x2 + -2y + y2 = 15 + -15 + 2y + -2y + -1y2 + y2

Combine like terms: 15 + -15 = 0
-15 + x2 + -2y + y2 = 0 + 2y + -2y + -1y2 + y2
-15 + x2 + -2y + y2 = 2y + -2y + -1y2 + y2

Combine like terms: 2y + -2y = 0
-15 + x2 + -2y + y2 = 0 + -1y2 + y2
-15 + x2 + -2y + y2 = -1y2 + y2

Combine like terms: -1y2 + y2 = 0
-15 + x2 + -2y + y2 = 0

The solution to this equation could not be determined.

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