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Simplifying -4.2x + 1.1 = -19.9 Reorder the terms: 1.1 + -4.2x = -19.9 Solving 1.1 + -4.2x = -19.9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + -4.2x = -19.9 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + -4.2x = -19.9 + -1.1 -4.2x = -19.9 + -1.1 Combine like terms: -19.9 + -1.1 = -21 -4.2x = -21 Divide each side by '-4.2'. x = 5 Simplifying x = 5
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