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Simplifying x + (x + 2) + (x + 4) + (x + 6) = -142 Reorder the terms: x + (2 + x) + (x + 4) + (x + 6) = -142 Remove parenthesis around (2 + x) x + 2 + x + (x + 4) + (x + 6) = -142 Reorder the terms: x + 2 + x + (4 + x) + (x + 6) = -142 Remove parenthesis around (4 + x) x + 2 + x + 4 + x + (x + 6) = -142 Reorder the terms: x + 2 + x + 4 + x + (6 + x) = -142 Remove parenthesis around (6 + x) x + 2 + x + 4 + x + 6 + x = -142 Reorder the terms: 2 + 4 + 6 + x + x + x + x = -142 Combine like terms: 2 + 4 = 6 6 + 6 + x + x + x + x = -142 Combine like terms: 6 + 6 = 12 12 + x + x + x + x = -142 Combine like terms: x + x = 2x 12 + 2x + x + x = -142 Combine like terms: 2x + x = 3x 12 + 3x + x = -142 Combine like terms: 3x + x = 4x 12 + 4x = -142 Solving 12 + 4x = -142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 4x = -142 + -12 Combine like terms: 12 + -12 = 0 0 + 4x = -142 + -12 4x = -142 + -12 Combine like terms: -142 + -12 = -154 4x = -154 Divide each side by '4'. x = -38.5 Simplifying x = -38.5
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