Xy+3x+y^2=21

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Solution for Xy+3x+y^2=21 equation:


Simplifying
Xy + 3x + y2 = 21

Reorder the terms:
3x + yX + y2 = 21

Solving
3x + yX + y2 = 21

Solving for variable 'x'.

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

Add '-1yX' to each side of the equation.
3x + yX + -1yX + y2 = 21 + -1yX

Combine like terms: yX + -1yX = 0
3x + 0 + y2 = 21 + -1yX
3x + y2 = 21 + -1yX

Add '-1y2' to each side of the equation.
3x + y2 + -1y2 = 21 + -1yX + -1y2

Combine like terms: y2 + -1y2 = 0
3x + 0 = 21 + -1yX + -1y2
3x = 21 + -1yX + -1y2

Divide each side by '3'.
x = 7 + -0.3333333333yX + -0.3333333333y2

Simplifying
x = 7 + -0.3333333333yX + -0.3333333333y2

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