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Simplifying (x + -1)(y + 2) = 18 Reorder the terms: (-1 + x)(y + 2) = 18 Reorder the terms: (-1 + x)(2 + y) = 18 Multiply (-1 + x) * (2 + y) (-1(2 + y) + x(2 + y)) = 18 ((2 * -1 + y * -1) + x(2 + y)) = 18 ((-2 + -1y) + x(2 + y)) = 18 (-2 + -1y + (2 * x + y * x)) = 18 (-2 + -1y + (2x + xy)) = 18 Reorder the terms: (-2 + 2x + xy + -1y) = 18 (-2 + 2x + xy + -1y) = 18 Solving -2 + 2x + xy + -1y = 18 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2x + xy + 2 + -1y = 18 + 2 Reorder the terms: -2 + 2 + 2x + xy + -1y = 18 + 2 Combine like terms: -2 + 2 = 0 0 + 2x + xy + -1y = 18 + 2 2x + xy + -1y = 18 + 2 Combine like terms: 18 + 2 = 20 2x + xy + -1y = 20 Add 'y' to each side of the equation. 2x + xy + -1y + y = 20 + y Combine like terms: -1y + y = 0 2x + xy + 0 = 20 + y 2x + xy = 20 + y Reorder the terms: -20 + 2x + xy + -1y = 20 + y + -20 + -1y Reorder the terms: -20 + 2x + xy + -1y = 20 + -20 + y + -1y Combine like terms: 20 + -20 = 0 -20 + 2x + xy + -1y = 0 + y + -1y -20 + 2x + xy + -1y = y + -1y Combine like terms: y + -1y = 0 -20 + 2x + xy + -1y = 0 The solution to this equation could not be determined.
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