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Simplifying (X + -1)(x + 3) = 15 Reorder the terms: (-1 + X)(x + 3) = 15 Reorder the terms: (-1 + X)(3 + x) = 15 Multiply (-1 + X) * (3 + x) (-1(3 + x) + X(3 + x)) = 15 ((3 * -1 + x * -1) + X(3 + x)) = 15 ((-3 + -1x) + X(3 + x)) = 15 (-3 + -1x + (3 * X + x * X)) = 15 (-3 + -1x + (3X + xX)) = 15 Reorder the terms: (-3 + 3X + -1x + xX) = 15 (-3 + 3X + -1x + xX) = 15 Solving -3 + 3X + -1x + xX = 15 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3X + -1x + 3 + xX = 15 + 3 Reorder the terms: -3 + 3 + 3X + -1x + xX = 15 + 3 Combine like terms: -3 + 3 = 0 0 + 3X + -1x + xX = 15 + 3 3X + -1x + xX = 15 + 3 Combine like terms: 15 + 3 = 18 3X + -1x + xX = 18 Add 'x' to each side of the equation. 3X + -1x + x + xX = 18 + x Combine like terms: -1x + x = 0 3X + 0 + xX = 18 + x 3X + xX = 18 + x Reorder the terms: -18 + 3X + -1x + xX = 18 + x + -18 + -1x Reorder the terms: -18 + 3X + -1x + xX = 18 + -18 + x + -1x Combine like terms: 18 + -18 = 0 -18 + 3X + -1x + xX = 0 + x + -1x -18 + 3X + -1x + xX = x + -1x Combine like terms: x + -1x = 0 -18 + 3X + -1x + xX = 0 The solution to this equation could not be determined.
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