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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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