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Simplifying (X + 3)(x + -1) = 77 Reorder the terms: (3 + X)(x + -1) = 77 Reorder the terms: (3 + X)(-1 + x) = 77 Multiply (3 + X) * (-1 + x) (3(-1 + x) + X(-1 + x)) = 77 ((-1 * 3 + x * 3) + X(-1 + x)) = 77 ((-3 + 3x) + X(-1 + x)) = 77 (-3 + 3x + (-1 * X + x * X)) = 77 (-3 + 3x + (-1X + xX)) = 77 Reorder the terms: (-3 + -1X + 3x + xX) = 77 (-3 + -1X + 3x + xX) = 77 Solving -3 + -1X + 3x + xX = 77 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 + -1X + 3x + 3 + xX = 77 + 3 Reorder the terms: -3 + 3 + -1X + 3x + xX = 77 + 3 Combine like terms: -3 + 3 = 0 0 + -1X + 3x + xX = 77 + 3 -1X + 3x + xX = 77 + 3 Combine like terms: 77 + 3 = 80 -1X + 3x + xX = 80 Add '-3x' to each side of the equation. -1X + 3x + -3x + xX = 80 + -3x Combine like terms: 3x + -3x = 0 -1X + 0 + xX = 80 + -3x -1X + xX = 80 + -3x Reorder the terms: -80 + -1X + 3x + xX = 80 + -3x + -80 + 3x Reorder the terms: -80 + -1X + 3x + xX = 80 + -80 + -3x + 3x Combine like terms: 80 + -80 = 0 -80 + -1X + 3x + xX = 0 + -3x + 3x -80 + -1X + 3x + xX = -3x + 3x Combine like terms: -3x + 3x = 0 -80 + -1X + 3x + xX = 0 The solution to this equation could not be determined.
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