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Simplifying (X + -1)(x + 2) = 18 Reorder the terms: (-1 + X)(x + 2) = 18 Reorder the terms: (-1 + X)(2 + x) = 18 Multiply (-1 + X) * (2 + x) (-1(2 + x) + X(2 + x)) = 18 ((2 * -1 + x * -1) + X(2 + x)) = 18 ((-2 + -1x) + X(2 + x)) = 18 (-2 + -1x + (2 * X + x * X)) = 18 (-2 + -1x + (2X + xX)) = 18 Reorder the terms: (-2 + 2X + -1x + xX) = 18 (-2 + 2X + -1x + xX) = 18 Solving -2 + 2X + -1x + xX = 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 + -1x + 2 + xX = 18 + 2 Reorder the terms: -2 + 2 + 2X + -1x + xX = 18 + 2 Combine like terms: -2 + 2 = 0 0 + 2X + -1x + xX = 18 + 2 2X + -1x + xX = 18 + 2 Combine like terms: 18 + 2 = 20 2X + -1x + xX = 20 Add 'x' to each side of the equation. 2X + -1x + x + xX = 20 + x Combine like terms: -1x + x = 0 2X + 0 + xX = 20 + x 2X + xX = 20 + x Reorder the terms: -20 + 2X + -1x + xX = 20 + x + -20 + -1x Reorder the terms: -20 + 2X + -1x + xX = 20 + -20 + x + -1x Combine like terms: 20 + -20 = 0 -20 + 2X + -1x + xX = 0 + x + -1x -20 + 2X + -1x + xX = x + -1x Combine like terms: x + -1x = 0 -20 + 2X + -1x + xX = 0 The solution to this equation could not be determined.
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