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Simplifying -12 = 6x + -9x * 3 Reorder the terms for easier multiplication: -12 = 6x + -9 * 3x Multiply -9 * 3 -12 = 6x + -27x Combine like terms: 6x + -27x = -21x -12 = -21x Solving -12 = -21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21x' to each side of the equation. -12 + 21x = -21x + 21x Combine like terms: -21x + 21x = 0 -12 + 21x = 0 Add '12' to each side of the equation. -12 + 12 + 21x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 21x = 0 + 12 21x = 0 + 12 Combine like terms: 0 + 12 = 12 21x = 12 Divide each side by '21'. x = 0.5714285714 Simplifying x = 0.5714285714
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