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Simplifying 12x + 4 = 9x + 3 Reorder the terms: 4 + 12x = 9x + 3 Reorder the terms: 4 + 12x = 3 + 9x Solving 4 + 12x = 3 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. 4 + 12x + -9x = 3 + 9x + -9x Combine like terms: 12x + -9x = 3x 4 + 3x = 3 + 9x + -9x Combine like terms: 9x + -9x = 0 4 + 3x = 3 + 0 4 + 3x = 3 Add '-4' to each side of the equation. 4 + -4 + 3x = 3 + -4 Combine like terms: 4 + -4 = 0 0 + 3x = 3 + -4 3x = 3 + -4 Combine like terms: 3 + -4 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333
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