2x^2-4x+y^2-2y+z^2+4z=91

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Solution for 2x^2-4x+y^2-2y+z^2+4z=91 equation: 


Simplifying
2x2 + -4x + y2 + -2y + z2 + 4z = 91

Reorder the terms:
-4x + 2x2 + -2y + y2 + 4z + z2 = 91

Solving
-4x + 2x2 + -2y + y2 + 4z + z2 = 91

Solving for variable 'x'.

Reorder the terms:
-91 + -4x + 2x2 + -2y + y2 + 4z + z2 = 91 + -91

Combine like terms: 91 + -91 = 0
-91 + -4x + 2x2 + -2y + y2 + 4z + z2 = 0

The solution to this equation could not be determined.

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