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Simplifying (X + -7)(3x + -7) = 0 Reorder the terms: (-7 + X)(3x + -7) = 0 Reorder the terms: (-7 + X)(-7 + 3x) = 0 Multiply (-7 + X) * (-7 + 3x) (-7(-7 + 3x) + X(-7 + 3x)) = 0 ((-7 * -7 + 3x * -7) + X(-7 + 3x)) = 0 ((49 + -21x) + X(-7 + 3x)) = 0 (49 + -21x + (-7 * X + 3x * X)) = 0 (49 + -21x + (-7X + 3xX)) = 0 Reorder the terms: (49 + -7X + -21x + 3xX) = 0 (49 + -7X + -21x + 3xX) = 0 Solving 49 + -7X + -21x + 3xX = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-49' to each side of the equation. 49 + -7X + -21x + -49 + 3xX = 0 + -49 Reorder the terms: 49 + -49 + -7X + -21x + 3xX = 0 + -49 Combine like terms: 49 + -49 = 0 0 + -7X + -21x + 3xX = 0 + -49 -7X + -21x + 3xX = 0 + -49 Combine like terms: 0 + -49 = -49 -7X + -21x + 3xX = -49 Add '21x' to each side of the equation. -7X + -21x + 21x + 3xX = -49 + 21x Combine like terms: -21x + 21x = 0 -7X + 0 + 3xX = -49 + 21x -7X + 3xX = -49 + 21x Reorder the terms: 49 + -7X + -21x + 3xX = -49 + 21x + 49 + -21x Reorder the terms: 49 + -7X + -21x + 3xX = -49 + 49 + 21x + -21x Combine like terms: -49 + 49 = 0 49 + -7X + -21x + 3xX = 0 + 21x + -21x 49 + -7X + -21x + 3xX = 21x + -21x Combine like terms: 21x + -21x = 0 49 + -7X + -21x + 3xX = 0 The solution to this equation could not be determined.
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