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Simplifying 9(n + 1) = 9n + 1 Reorder the terms: 9(1 + n) = 9n + 1 (1 * 9 + n * 9) = 9n + 1 (9 + 9n) = 9n + 1 Reorder the terms: 9 + 9n = 1 + 9n Add '-9n' to each side of the equation. 9 + 9n + -9n = 1 + 9n + -9n Combine like terms: 9n + -9n = 0 9 + 0 = 1 + 9n + -9n 9 = 1 + 9n + -9n Combine like terms: 9n + -9n = 0 9 = 1 + 0 9 = 1 Solving 9 = 1 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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