\"\"

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The equation is \"\".

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Observe the equation and think of the equation as a question.

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Which number when divided by 9 gives the quotient of 10?

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The number is 90

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\"\"

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Check:

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 To check the solution, substitute \"\" in original equation. 

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   \"\"              

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   \"\"                                 (Divide: \"\"  )

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   Compare the values, the equation is true.

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  \"\"

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The value of \"\".

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