3xy+y^2=1.4y+xy-81

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Solution for 3xy+y^2=1.4y+xy-81 equation:


Simplifying
3xy + y2 = 1.4y + xy + -81

Reorder the terms:
3xy + y2 = -81 + xy + 1.4y

Solving
3xy + y2 = -81 + xy + 1.4y

Solving for variable 'x'.

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

Add '-1xy' to each side of the equation.
3xy + -1xy + y2 = -81 + xy + -1xy + 1.4y

Combine like terms: 3xy + -1xy = 2xy
2xy + y2 = -81 + xy + -1xy + 1.4y

Combine like terms: xy + -1xy = 0
2xy + y2 = -81 + 0 + 1.4y
2xy + y2 = -81 + 1.4y

Add '-1y2' to each side of the equation.
2xy + y2 + -1y2 = -81 + 1.4y + -1y2

Combine like terms: y2 + -1y2 = 0
2xy + 0 = -81 + 1.4y + -1y2
2xy = -81 + 1.4y + -1y2

Divide each side by '2y'.
x = -40.5y-1 + 0.7 + -0.5y

Simplifying
x = -40.5y-1 + 0.7 + -0.5y

Reorder the terms:
x = 0.7 + -40.5y-1 + -0.5y

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