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Simplifying 2 + 5n + -30 + 7 = 0 Reorder the terms: 2 + -30 + 7 + 5n = 0 Combine like terms: 2 + -30 = -28 -28 + 7 + 5n = 0 Combine like terms: -28 + 7 = -21 -21 + 5n = 0 Solving -21 + 5n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 5n = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 5n = 0 + 21 5n = 0 + 21 Combine like terms: 0 + 21 = 21 5n = 21 Divide each side by '5'. n = 4.2 Simplifying n = 4.2
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