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Simplifying (X + -7)(x + -1) = 18 Reorder the terms: (-7 + X)(x + -1) = 18 Reorder the terms: (-7 + X)(-1 + x) = 18 Multiply (-7 + X) * (-1 + x) (-7(-1 + x) + X(-1 + x)) = 18 ((-1 * -7 + x * -7) + X(-1 + x)) = 18 ((7 + -7x) + X(-1 + x)) = 18 (7 + -7x + (-1 * X + x * X)) = 18 (7 + -7x + (-1X + xX)) = 18 Reorder the terms: (7 + -1X + -7x + xX) = 18 (7 + -1X + -7x + xX) = 18 Solving 7 + -1X + -7x + xX = 18 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -1X + -7x + -7 + xX = 18 + -7 Reorder the terms: 7 + -7 + -1X + -7x + xX = 18 + -7 Combine like terms: 7 + -7 = 0 0 + -1X + -7x + xX = 18 + -7 -1X + -7x + xX = 18 + -7 Combine like terms: 18 + -7 = 11 -1X + -7x + xX = 11 Add '7x' to each side of the equation. -1X + -7x + 7x + xX = 11 + 7x Combine like terms: -7x + 7x = 0 -1X + 0 + xX = 11 + 7x -1X + xX = 11 + 7x Reorder the terms: -11 + -1X + -7x + xX = 11 + 7x + -11 + -7x Reorder the terms: -11 + -1X + -7x + xX = 11 + -11 + 7x + -7x Combine like terms: 11 + -11 = 0 -11 + -1X + -7x + xX = 0 + 7x + -7x -11 + -1X + -7x + xX = 7x + -7x Combine like terms: 7x + -7x = 0 -11 + -1X + -7x + xX = 0 The solution to this equation could not be determined.
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