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Today, 15:48

What value correctly fills in the blank so that the expressions are equivalent?

32 + 72 = _x (4 + 9)

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Answers (2)
  1. Today, 16:08
    0
    8

    Step-by-step explanation:

    Notice:

    32 = (8 x 4)

    72 = (8 x 9)

    Hence,

    32 + 72

    = (8 x 4) + (8 x 9) (factorize out the 8)

    = 8 x (4 + 9)

    therefore the musing number is 8
  2. Today, 16:11
    0
    Step-by-step explanation:

    32 + 72 = 8*4 + 8 * 9

    = 8 * (4 + 9)

    So 8 will come in the blank
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