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