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Simplifying 4.2x + -15.83 = 3.9 Reorder the terms: -15.83 + 4.2x = 3.9 Solving -15.83 + 4.2x = 3.9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15.83' to each side of the equation. -15.83 + 15.83 + 4.2x = 3.9 + 15.83 Combine like terms: -15.83 + 15.83 = 0.00 0.00 + 4.2x = 3.9 + 15.83 4.2x = 3.9 + 15.83 Combine like terms: 3.9 + 15.83 = 19.73 4.2x = 19.73 Divide each side by '4.2'. x = 4.697619048 Simplifying x = 4.697619048
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