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Simplifying 3n + 3(1 + -1n) = 3 3n + (1 * 3 + -1n * 3) = 3 3n + (3 + -3n) = 3 Reorder the terms: 3 + 3n + -3n = 3 Combine like terms: 3n + -3n = 0 3 + 0 = 3 3 = 3 Add '-3' to each side of the equation. 3 + -3 = 3 + -3 Combine like terms: 3 + -3 = 0 0 = 3 + -3 Combine like terms: 3 + -3 = 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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