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18 February, 21:21

Solve equations and justifying - 30=-6 (r+7)

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Answers (2)
  1. 18 February, 21:52
    0
    -30=-6r-42

    -6r=-30+42

    -6r=12

    r=-2
  2. 19 February, 00:38
    0
    R=-2

    -30 = - 6r - 42

    +42. + 42

    12=-6r

    r=-2
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