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Simplifying n + -1(n + 1) = 0 Reorder the terms: n + -1(1 + n) = 0 n + (1 * -1 + n * -1) = 0 n + (-1 + -1n) = 0 Reorder the terms: -1 + n + -1n = 0 Combine like terms: n + -1n = 0 -1 + 0 = 0 -1 = 0 Solving -1 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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