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Simplifying (X + -7)(x + -7) = -121 Reorder the terms: (-7 + X)(x + -7) = -121 Reorder the terms: (-7 + X)(-7 + x) = -121 Multiply (-7 + X) * (-7 + x) (-7(-7 + x) + X(-7 + x)) = -121 ((-7 * -7 + x * -7) + X(-7 + x)) = -121 ((49 + -7x) + X(-7 + x)) = -121 (49 + -7x + (-7 * X + x * X)) = -121 (49 + -7x + (-7X + xX)) = -121 Reorder the terms: (49 + -7X + -7x + xX) = -121 (49 + -7X + -7x + xX) = -121 Solving 49 + -7X + -7x + xX = -121 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 + -7x + -49 + xX = -121 + -49 Reorder the terms: 49 + -49 + -7X + -7x + xX = -121 + -49 Combine like terms: 49 + -49 = 0 0 + -7X + -7x + xX = -121 + -49 -7X + -7x + xX = -121 + -49 Combine like terms: -121 + -49 = -170 -7X + -7x + xX = -170 Add '7x' to each side of the equation. -7X + -7x + 7x + xX = -170 + 7x Combine like terms: -7x + 7x = 0 -7X + 0 + xX = -170 + 7x -7X + xX = -170 + 7x Reorder the terms: 170 + -7X + -7x + xX = -170 + 7x + 170 + -7x Reorder the terms: 170 + -7X + -7x + xX = -170 + 170 + 7x + -7x Combine like terms: -170 + 170 = 0 170 + -7X + -7x + xX = 0 + 7x + -7x 170 + -7X + -7x + xX = 7x + -7x Combine like terms: 7x + -7x = 0 170 + -7X + -7x + xX = 0 The solution to this equation could not be determined.
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