If you take a certain number and write a 9 to the right of it and add the doubled certain number to the result, the sum will be equal to 633

Question

If you take a certain number and write a 9 to the right of it and add the doubled certain number to the result, the sum will be equal to 633. Find the certain number.

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Kim Chi 3 years 2021-08-02T01:16:14+00:00 2 Answers 11 views 0

Answers ( )

  1. thuthuy
    0
    2021-08-02T01:17:30+00:00
    Reply

    Answer:

    let’s say x is a certain number

    10*x+9+2x=633

    12x=624

    x=52

    Proof:

    529+104=633

    Step-by-step explanation:

  2. King
    0
    2021-08-02T01:18:10+00:00
    Reply

    Hello,

    let’s say x is a certain number

    10*x+9+2x=633

    12x=624

    x=52

    Proof:

    529+104=633

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