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Simplifying (X + -4)(x + 7) = 0 Reorder the terms: (-4 + X)(x + 7) = 0 Reorder the terms: (-4 + X)(7 + x) = 0 Multiply (-4 + X) * (7 + x) (-4(7 + x) + X(7 + x)) = 0 ((7 * -4 + x * -4) + X(7 + x)) = 0 ((-28 + -4x) + X(7 + x)) = 0 (-28 + -4x + (7 * X + x * X)) = 0 (-28 + -4x + (7X + xX)) = 0 Reorder the terms: (-28 + 7X + -4x + xX) = 0 (-28 + 7X + -4x + xX) = 0 Solving -28 + 7X + -4x + xX = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 7X + -4x + 28 + xX = 0 + 28 Reorder the terms: -28 + 28 + 7X + -4x + xX = 0 + 28 Combine like terms: -28 + 28 = 0 0 + 7X + -4x + xX = 0 + 28 7X + -4x + xX = 0 + 28 Combine like terms: 0 + 28 = 28 7X + -4x + xX = 28 Add '4x' to each side of the equation. 7X + -4x + 4x + xX = 28 + 4x Combine like terms: -4x + 4x = 0 7X + 0 + xX = 28 + 4x 7X + xX = 28 + 4x Reorder the terms: -28 + 7X + -4x + xX = 28 + 4x + -28 + -4x Reorder the terms: -28 + 7X + -4x + xX = 28 + -28 + 4x + -4x Combine like terms: 28 + -28 = 0 -28 + 7X + -4x + xX = 0 + 4x + -4x -28 + 7X + -4x + xX = 4x + -4x Combine like terms: 4x + -4x = 0 -28 + 7X + -4x + xX = 0 The solution to this equation could not be determined.
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