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10 February, 04:13

Fill in the blank:

_?__ (x+3) = 7x+21

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Answers (1)
  1. 10 February, 05:02
    0
    The fill-in-the-blank is 7.

    Step-by-step explanation:

    By factoring out the greatest common factor, 7, you will get 7 (x + 3).

    7 (x + 3) = 7x + 21
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