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Simplifying 9(n + 9) = 3(27 + 3n) Reorder the terms: 9(9 + n) = 3(27 + 3n) (9 * 9 + n * 9) = 3(27 + 3n) (81 + 9n) = 3(27 + 3n) 81 + 9n = (27 * 3 + 3n * 3) 81 + 9n = (81 + 9n) Add '-81' to each side of the equation. 81 + -81 + 9n = 81 + -81 + 9n Combine like terms: 81 + -81 = 0 0 + 9n = 81 + -81 + 9n 9n = 81 + -81 + 9n Combine like terms: 81 + -81 = 0 9n = 0 + 9n 9n = 9n Add '-9n' to each side of the equation. 9n + -9n = 9n + -9n Combine like terms: 9n + -9n = 0 0 = 9n + -9n Combine like terms: 9n + -9n = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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