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Simplifying (X + 4)(x + -5) = 9 Reorder the terms: (4 + X)(x + -5) = 9 Reorder the terms: (4 + X)(-5 + x) = 9 Multiply (4 + X) * (-5 + x) (4(-5 + x) + X(-5 + x)) = 9 ((-5 * 4 + x * 4) + X(-5 + x)) = 9 ((-20 + 4x) + X(-5 + x)) = 9 (-20 + 4x + (-5 * X + x * X)) = 9 (-20 + 4x + (-5X + xX)) = 9 Reorder the terms: (-20 + -5X + 4x + xX) = 9 (-20 + -5X + 4x + xX) = 9 Solving -20 + -5X + 4x + xX = 9 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '20' to each side of the equation. -20 + -5X + 4x + 20 + xX = 9 + 20 Reorder the terms: -20 + 20 + -5X + 4x + xX = 9 + 20 Combine like terms: -20 + 20 = 0 0 + -5X + 4x + xX = 9 + 20 -5X + 4x + xX = 9 + 20 Combine like terms: 9 + 20 = 29 -5X + 4x + xX = 29 Add '-4x' to each side of the equation. -5X + 4x + -4x + xX = 29 + -4x Combine like terms: 4x + -4x = 0 -5X + 0 + xX = 29 + -4x -5X + xX = 29 + -4x Reorder the terms: -29 + -5X + 4x + xX = 29 + -4x + -29 + 4x Reorder the terms: -29 + -5X + 4x + xX = 29 + -29 + -4x + 4x Combine like terms: 29 + -29 = 0 -29 + -5X + 4x + xX = 0 + -4x + 4x -29 + -5X + 4x + xX = -4x + 4x Combine like terms: -4x + 4x = 0 -29 + -5X + 4x + xX = 0 The solution to this equation could not be determined.
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