Three times of a natural number is 18 more than the number. Then, the number is :
9
Let the natural number be \(x\).
According to the condition, three times the number is 18 more than the number: \(3x = x + 18\).
\(3x - x = 18\), which gives \(2x = 18\).
\(x = 9\).
Hence, the number is 9.
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