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Simplifying N3 + 4n3 + -21n = 0 Reorder the terms: N3 + -21n + 4n3 = 0 Solving N3 + -21n + 4n3 = 0 Solving for variable 'N'. Move all terms containing N to the left, all other terms to the right. Add '21n' to each side of the equation. N3 + -21n + 21n + 4n3 = 0 + 21n Combine like terms: -21n + 21n = 0 N3 + 0 + 4n3 = 0 + 21n N3 + 4n3 = 0 + 21n Remove the zero: N3 + 4n3 = 21n Add '-4n3' to each side of the equation. N3 + 4n3 + -4n3 = 21n + -4n3 Combine like terms: 4n3 + -4n3 = 0 N3 + 0 = 21n + -4n3 N3 = 21n + -4n3 Simplifying N3 = 21n + -4n3 Reorder the terms: N3 + -21n + 4n3 = 21n + -21n + -4n3 + 4n3 Combine like terms: 21n + -21n = 0 N3 + -21n + 4n3 = 0 + -4n3 + 4n3 N3 + -21n + 4n3 = -4n3 + 4n3 Combine like terms: -4n3 + 4n3 = 0 N3 + -21n + 4n3 = 0 The solution to this equation could not be determined.
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