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Simplifying -4.2x + 2.3 = -18.7 Reorder the terms: 2.3 + -4.2x = -18.7 Solving 2.3 + -4.2x = -18.7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + -4.2x = -18.7 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + -4.2x = -18.7 + -2.3 -4.2x = -18.7 + -2.3 Combine like terms: -18.7 + -2.3 = -21 -4.2x = -21 Divide each side by '-4.2'. x = 5 Simplifying x = 5
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