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Simplifying 3x + -12x + 4 = 0 Reorder the terms: 4 + 3x + -12x = 0 Combine like terms: 3x + -12x = -9x 4 + -9x = 0 Solving 4 + -9x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -9x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -9x = 0 + -4 -9x = 0 + -4 Combine like terms: 0 + -4 = -4 -9x = -4 Divide each side by '-9'. x = 0.4444444444 Simplifying x = 0.4444444444
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