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Simplifying N2 + 2n + 21 = 0 Reorder the terms: 21 + N2 + 2n = 0 Solving 21 + N2 + 2n = 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 + N2 + -21 + 2n = 0 + -21 Reorder the terms: 21 + -21 + N2 + 2n = 0 + -21 Combine like terms: 21 + -21 = 0 0 + N2 + 2n = 0 + -21 N2 + 2n = 0 + -21 Combine like terms: 0 + -21 = -21 N2 + 2n = -21 Add '-2n' to each side of the equation. N2 + 2n + -2n = -21 + -2n Combine like terms: 2n + -2n = 0 N2 + 0 = -21 + -2n N2 = -21 + -2n Simplifying N2 = -21 + -2n Reorder the terms: 21 + N2 + 2n = -21 + -2n + 21 + 2n Reorder the terms: 21 + N2 + 2n = -21 + 21 + -2n + 2n Combine like terms: -21 + 21 = 0 21 + N2 + 2n = 0 + -2n + 2n 21 + N2 + 2n = -2n + 2n Combine like terms: -2n + 2n = 0 21 + N2 + 2n = 0 The solution to this equation could not be determined.
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