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Simplifying xy + x + -1y = 4 Reorder the terms: x + xy + -1y = 4 Solving x + xy + -1y = 4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'y' to each side of the equation. x + xy + -1y + y = 4 + y Combine like terms: -1y + y = 0 x + xy + 0 = 4 + y x + xy = 4 + y Reorder the terms: -4 + x + xy + -1y = 4 + y + -4 + -1y Reorder the terms: -4 + x + xy + -1y = 4 + -4 + y + -1y Combine like terms: 4 + -4 = 0 -4 + x + xy + -1y = 0 + y + -1y -4 + x + xy + -1y = y + -1y Combine like terms: y + -1y = 0 -4 + x + xy + -1y = 0 The solution to this equation could not be determined.
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