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Simplifying X + (X + 7) + (2X + 2) + (2X + -7) = 0 Reorder the terms: X + (7 + X) + (2X + 2) + (2X + -7) = 0 Remove parenthesis around (7 + X) X + 7 + X + (2X + 2) + (2X + -7) = 0 Reorder the terms: X + 7 + X + (2 + 2X) + (2X + -7) = 0 Remove parenthesis around (2 + 2X) X + 7 + X + 2 + 2X + (2X + -7) = 0 Reorder the terms: X + 7 + X + 2 + 2X + (-7 + 2X) = 0 Remove parenthesis around (-7 + 2X) X + 7 + X + 2 + 2X + -7 + 2X = 0 Reorder the terms: 7 + 2 + -7 + X + X + 2X + 2X = 0 Combine like terms: 7 + 2 = 9 9 + -7 + X + X + 2X + 2X = 0 Combine like terms: 9 + -7 = 2 2 + X + X + 2X + 2X = 0 Combine like terms: X + X = 2X 2 + 2X + 2X + 2X = 0 Combine like terms: 2X + 2X = 4X 2 + 4X + 2X = 0 Combine like terms: 4X + 2X = 6X 2 + 6X = 0 Solving 2 + 6X = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 6X = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 6X = 0 + -2 6X = 0 + -2 Combine like terms: 0 + -2 = -2 6X = -2 Divide each side by '6'. X = -0.3333333333 Simplifying X = -0.3333333333
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