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Question
A number is 7 more than one-third of itself.
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Solution
Let the number be x
Then, `1/3`rd of number = `x/3`
So, the equation formed is `x = 7 + x/3`.
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For riddle answer: substitute the number for the letter it equals
`()/1 ()/2 / ()/3 ()/4 ()/5 ()/6 ()/7 ()/8/()/4 ()/9`
