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Simplifying (X + 7)(x + -1) = -16 Reorder the terms: (7 + X)(x + -1) = -16 Reorder the terms: (7 + X)(-1 + x) = -16 Multiply (7 + X) * (-1 + x) (7(-1 + x) + X(-1 + x)) = -16 ((-1 * 7 + x * 7) + X(-1 + x)) = -16 ((-7 + 7x) + X(-1 + x)) = -16 (-7 + 7x + (-1 * X + x * X)) = -16 (-7 + 7x + (-1X + xX)) = -16 Reorder the terms: (-7 + -1X + 7x + xX) = -16 (-7 + -1X + 7x + xX) = -16 Solving -7 + -1X + 7x + xX = -16 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 = -16 + 7 Reorder the terms: -7 + 7 + -1X + 7x + xX = -16 + 7 Combine like terms: -7 + 7 = 0 0 + -1X + 7x + xX = -16 + 7 -1X + 7x + xX = -16 + 7 Combine like terms: -16 + 7 = -9 -1X + 7x + xX = -9 Add '-7x' to each side of the equation. -1X + 7x + -7x + xX = -9 + -7x Combine like terms: 7x + -7x = 0 -1X + 0 + xX = -9 + -7x -1X + xX = -9 + -7x Reorder the terms: 9 + -1X + 7x + xX = -9 + -7x + 9 + 7x Reorder the terms: 9 + -1X + 7x + xX = -9 + 9 + -7x + 7x Combine like terms: -9 + 9 = 0 9 + -1X + 7x + xX = 0 + -7x + 7x 9 + -1X + 7x + xX = -7x + 7x Combine like terms: -7x + 7x = 0 9 + -1X + 7x + xX = 0 The solution to this equation could not be determined.
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