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Simplifying 12x + 30 = 3x Reorder the terms: 30 + 12x = 3x Solving 30 + 12x = 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. 30 + 12x + -3x = 3x + -3x Combine like terms: 12x + -3x = 9x 30 + 9x = 3x + -3x Combine like terms: 3x + -3x = 0 30 + 9x = 0 Add '-30' to each side of the equation. 30 + -30 + 9x = 0 + -30 Combine like terms: 30 + -30 = 0 0 + 9x = 0 + -30 9x = 0 + -30 Combine like terms: 0 + -30 = -30 9x = -30 Divide each side by '9'. x = -3.333333333 Simplifying x = -3.333333333
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