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Simplifying (X + 7)(x + -9) = 0 Reorder the terms: (7 + X)(x + -9) = 0 Reorder the terms: (7 + X)(-9 + x) = 0 Multiply (7 + X) * (-9 + x) (7(-9 + x) + X(-9 + x)) = 0 ((-9 * 7 + x * 7) + X(-9 + x)) = 0 ((-63 + 7x) + X(-9 + x)) = 0 (-63 + 7x + (-9 * X + x * X)) = 0 (-63 + 7x + (-9X + xX)) = 0 Reorder the terms: (-63 + -9X + 7x + xX) = 0 (-63 + -9X + 7x + xX) = 0 Solving -63 + -9X + 7x + xX = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '63' to each side of the equation. -63 + -9X + 7x + 63 + xX = 0 + 63 Reorder the terms: -63 + 63 + -9X + 7x + xX = 0 + 63 Combine like terms: -63 + 63 = 0 0 + -9X + 7x + xX = 0 + 63 -9X + 7x + xX = 0 + 63 Combine like terms: 0 + 63 = 63 -9X + 7x + xX = 63 Add '-7x' to each side of the equation. -9X + 7x + -7x + xX = 63 + -7x Combine like terms: 7x + -7x = 0 -9X + 0 + xX = 63 + -7x -9X + xX = 63 + -7x Reorder the terms: -63 + -9X + 7x + xX = 63 + -7x + -63 + 7x Reorder the terms: -63 + -9X + 7x + xX = 63 + -63 + -7x + 7x Combine like terms: 63 + -63 = 0 -63 + -9X + 7x + xX = 0 + -7x + 7x -63 + -9X + 7x + xX = -7x + 7x Combine like terms: -7x + 7x = 0 -63 + -9X + 7x + xX = 0 The solution to this equation could not be determined.
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