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29 November, 16:20

6) 7 (-3r - 5) - 2 (8r + 2) = 35

8) - 5b - 13 = - 3 - 3b

10) 34 - 7k=-6 (4 + 6k)

I need the answers

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  1. 29 November, 16:40
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    6) r=-2

    8) b=-5

    10) k=-2
  2. 29 November, 17:59
    0
    6)

    7 (-3-5) - 2 (8r+2) = 35

    -21-35-16r-4 = 35

    -16r = 35+21+35+4

    -16r = 95

    r = 95/-16

    r = - 5 15/16

    8)

    -5b-13 = - 3-3b

    -5b+3b = - 3+13

    -2b = 10

    b = 10/-2

    b = - 5

    10)

    34 - 7k = - 6 (4+6k)

    34 - 7k = - 24 - 36k

    -7k + 36k = - 24 - 34

    29k = - 58

    k = - 58/29

    k = - 2
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