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24 January, 10:18

Which is a simplified form of the expression - 4 (3r - 2) - 2 (r + 1) ?

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Answers (1)
  1. 24 January, 10:23
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    2 (3 - 7 r)

    Step-by-step explanation:

    Simplify the following:

    -4 (3 r - 2) - 2 (r + 1)

    -4 (3 r - 2) = 8 - 12 r:

    8 - 12 r - 2 (r + 1)

    -2 (r + 1) = - 2 r - 2:

    -12 r + - 2 r - 2 + 8

    Grouping like terms, - 2 r - 12 r - 2 + 8 = (8 - 2) + (-12 r - 2 r):

    (8 - 2) + (-12 r - 2 r)

    -12 r - 2 r = - 14 r:

    -14 r + (8 - 2)

    8 - 2 = 6:

    6 - 14 r

    Factor 2 out of 6 - 14 r:

    Answer: 2 (3 - 7 r)
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