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Simplifying 2n + -21 = 3 + 5n Reorder the terms: -21 + 2n = 3 + 5n Solving -21 + 2n = 3 + 5n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-5n' to each side of the equation. -21 + 2n + -5n = 3 + 5n + -5n Combine like terms: 2n + -5n = -3n -21 + -3n = 3 + 5n + -5n Combine like terms: 5n + -5n = 0 -21 + -3n = 3 + 0 -21 + -3n = 3 Add '21' to each side of the equation. -21 + 21 + -3n = 3 + 21 Combine like terms: -21 + 21 = 0 0 + -3n = 3 + 21 -3n = 3 + 21 Combine like terms: 3 + 21 = 24 -3n = 24 Divide each side by '-3'. n = -8 Simplifying n = -8
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