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Simplifying 3.9 = 2.5x + 12.6 Reorder the terms: 3.9 = 12.6 + 2.5x Solving 3.9 = 12.6 + 2.5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5x' to each side of the equation. 3.9 + -2.5x = 12.6 + 2.5x + -2.5x Combine like terms: 2.5x + -2.5x = 0.0 3.9 + -2.5x = 12.6 + 0.0 3.9 + -2.5x = 12.6 Add '-3.9' to each side of the equation. 3.9 + -3.9 + -2.5x = 12.6 + -3.9 Combine like terms: 3.9 + -3.9 = 0.0 0.0 + -2.5x = 12.6 + -3.9 -2.5x = 12.6 + -3.9 Combine like terms: 12.6 + -3.9 = 8.7 -2.5x = 8.7 Divide each side by '-2.5'. x = -3.48 Simplifying x = -3.48
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