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Simplifying 4.2x + 3.9 = -3x + 6.1 Reorder the terms: 3.9 + 4.2x = -3x + 6.1 Reorder the terms: 3.9 + 4.2x = 6.1 + -3x Solving 3.9 + 4.2x = 6.1 + -3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3x' to each side of the equation. 3.9 + 4.2x + 3x = 6.1 + -3x + 3x Combine like terms: 4.2x + 3x = 7.2x 3.9 + 7.2x = 6.1 + -3x + 3x Combine like terms: -3x + 3x = 0 3.9 + 7.2x = 6.1 + 0 3.9 + 7.2x = 6.1 Add '-3.9' to each side of the equation. 3.9 + -3.9 + 7.2x = 6.1 + -3.9 Combine like terms: 3.9 + -3.9 = 0.0 0.0 + 7.2x = 6.1 + -3.9 7.2x = 6.1 + -3.9 Combine like terms: 6.1 + -3.9 = 2.2 7.2x = 2.2 Divide each side by '7.2'. x = 0.3055555556 Simplifying x = 0.3055555556
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