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20 April, 22:09

Which expression is equivalent to 6 (2m - 1) - 4 (m + 8) ?

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  1. 21 April, 01:08
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    If these are the choices:

    A. 8m - 38

    B. 8m + 7

    C. 8m + 31

    D. 2m - 38

    Solution:

    6 (2m - 1) - 4 (m + 8)

    distributive property of multiplication:

    6 (2m) + 6 (-1) - 4 (m) - 4 (8)

    12m - 6 - 4m - 32

    combine like terms:

    12m - 4m - 6 - 32

    8m - 38 choice A.
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