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12 July, 07:06

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

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  1. 12 July, 07:55
    0
    R=-2

    -30 = - 6r - 42

    +42. + 42

    12=-6r

    r=-2
  2. 12 July, 10:23
    0
    -30=-6r-42

    -6r=-30+42

    -6r=12

    r=-2
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