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If he takes the opposite number of his age and adds 40 and get 28 how old is he
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If he takes the opposite number of his age and adds 40 and get 28 how old is he

User Rez Moss
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He would be 12 years old because:

28= x+ 40
-40. -40

-12= x
Since someone cannot be -12 years old, that is the opposite of his age therefore, he is 12
User Alexander Gryzlov
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