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Simplifying (X + 7)(x + -3) = 0 Reorder the terms: (7 + X)(x + -3) = 0 Reorder the terms: (7 + X)(-3 + x) = 0 Multiply (7 + X) * (-3 + x) (7(-3 + x) + X(-3 + x)) = 0 ((-3 * 7 + x * 7) + X(-3 + x)) = 0 ((-21 + 7x) + X(-3 + x)) = 0 (-21 + 7x + (-3 * X + x * X)) = 0 (-21 + 7x + (-3X + xX)) = 0 Reorder the terms: (-21 + -3X + 7x + xX) = 0 (-21 + -3X + 7x + xX) = 0 Solving -21 + -3X + 7x + xX = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '21' to each side of the equation. -21 + -3X + 7x + 21 + xX = 0 + 21 Reorder the terms: -21 + 21 + -3X + 7x + xX = 0 + 21 Combine like terms: -21 + 21 = 0 0 + -3X + 7x + xX = 0 + 21 -3X + 7x + xX = 0 + 21 Combine like terms: 0 + 21 = 21 -3X + 7x + xX = 21 Add '-7x' to each side of the equation. -3X + 7x + -7x + xX = 21 + -7x Combine like terms: 7x + -7x = 0 -3X + 0 + xX = 21 + -7x -3X + xX = 21 + -7x Reorder the terms: -21 + -3X + 7x + xX = 21 + -7x + -21 + 7x Reorder the terms: -21 + -3X + 7x + xX = 21 + -21 + -7x + 7x Combine like terms: 21 + -21 = 0 -21 + -3X + 7x + xX = 0 + -7x + 7x -21 + -3X + 7x + xX = -7x + 7x Combine like terms: -7x + 7x = 0 -21 + -3X + 7x + xX = 0 The solution to this equation could not be determined.
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