Alice takes her favorite number, adds 5 to it, mu

Alice takes her favorite number, adds 5 to it, multiples the answer by 10, subtracts 20 from the result, and then drops the final 0. If Alice's (correct) answer is 9, what is her favorite number?

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  • aenviasa
    aenviasa
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    ANSWER
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    *** the ****** ** **

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    10X+50=20+9

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    X=-21/10

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