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26 November, 09:41

If x=9 then 12 + x = ?

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Answers (2)
  1. 26 November, 10:39
    0
    This is pretty easy once you know how to do it.

    12+x=? We are given what X is.

    So we just plug in X.

    12 + (9) = 21.

    21 is the answer

    -Steel jelly.
  2. 26 November, 13:38
    0
    21

    Step-by-step explanation:

    If X=9 then the equation is 12+9=21
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