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Simplifying (20n + -7.8) * 0.2 = 14.2 Reorder the terms: (-7.8 + 20n) * 0.2 = 14.2 Reorder the terms for easier multiplication: 0.2(-7.8 + 20n) = 14.2 (-7.8 * 0.2 + 20n * 0.2) = 14.2 (-1.56 + 4n) = 14.2 Solving -1.56 + 4n = 14.2 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.56' to each side of the equation. -1.56 + 1.56 + 4n = 14.2 + 1.56 Combine like terms: -1.56 + 1.56 = 0.00 0.00 + 4n = 14.2 + 1.56 4n = 14.2 + 1.56 Combine like terms: 14.2 + 1.56 = 15.76 4n = 15.76 Divide each side by '4'. n = 3.94 Simplifying n = 3.94
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