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Simplifying 3 + 2x + 6 = -12 Reorder the terms: 3 + 6 + 2x = -12 Combine like terms: 3 + 6 = 9 9 + 2x = -12 Solving 9 + 2x = -12 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 2x = -12 + -9 Combine like terms: 9 + -9 = 0 0 + 2x = -12 + -9 2x = -12 + -9 Combine like terms: -12 + -9 = -21 2x = -21 Divide each side by '2'. x = -10.5 Simplifying x = -10.5
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