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8 February, 13:17

28-4d = 5d - 7 what is do

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Answers (2)
  1. 8 February, 13:47
    0
    d = 35/9

    Step-by-step explanation:

    28-4d = 5d - 7

    Add 4d to each side

    28-4d+4d = 5d + 4d - 7

    28 = 9d-7

    Add 7 to each side

    28+7 = 9d-7+7

    35 = 9d

    Divide each side by 9

    35/9 = 9d/9

    d = 35/9
  2. 8 February, 17:09
    0
    d = 3.88888889

    rounded to the nearest tenth = 3.9

    rounded to the nearest hundredth = 3.89

    Step-by-step explanation:

    28-4d=5d-7 add 7 to both sides

    35-4d=5d add 4d to both sides

    35=9d divide both sides by 9

    3.88888889=d

    3.89=d

    3.9=d
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