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