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Simplifying -8.4 = -3.5n + 1.8 + 0.3 Reorder the terms: -8.4 = 1.8 + 0.3 + -3.5n Combine like terms: 1.8 + 0.3 = 2.1 -8.4 = 2.1 + -3.5n Solving -8.4 = 2.1 + -3.5n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3.5n' to each side of the equation. -8.4 + 3.5n = 2.1 + -3.5n + 3.5n Combine like terms: -3.5n + 3.5n = 0.0 -8.4 + 3.5n = 2.1 + 0.0 -8.4 + 3.5n = 2.1 Add '8.4' to each side of the equation. -8.4 + 8.4 + 3.5n = 2.1 + 8.4 Combine like terms: -8.4 + 8.4 = 0.0 0.0 + 3.5n = 2.1 + 8.4 3.5n = 2.1 + 8.4 Combine like terms: 2.1 + 8.4 = 10.5 3.5n = 10.5 Divide each side by '3.5'. n = 3 Simplifying n = 3
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