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Simplifying 7x + 9 = 12x + -4 Reorder the terms: 9 + 7x = 12x + -4 Reorder the terms: 9 + 7x = -4 + 12x Solving 9 + 7x = -4 + 12x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12x' to each side of the equation. 9 + 7x + -12x = -4 + 12x + -12x Combine like terms: 7x + -12x = -5x 9 + -5x = -4 + 12x + -12x Combine like terms: 12x + -12x = 0 9 + -5x = -4 + 0 9 + -5x = -4 Add '-9' to each side of the equation. 9 + -9 + -5x = -4 + -9 Combine like terms: 9 + -9 = 0 0 + -5x = -4 + -9 -5x = -4 + -9 Combine like terms: -4 + -9 = -13 -5x = -13 Divide each side by '-5'. x = 2.6 Simplifying x = 2.6
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