algebra 1

please help I have no clue how to do this
b-9+6b =30

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  1. b-9+6b =30

    5b -9 = 30

    5b -9 +9 =30+9

    5b = 39

    5b/5 = 39/5

    b = 39/5

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  2. b-9+6b =30

    Combine like terms.

    7b - 9 = 30

    Add 9 to both sides.

    7b = 39

    Divide both sides by 7.

    b = 5.5714

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    Ms. Sue
  3. Oop

    7b = 39
    7b/7 = 39/7

    b = 39/7

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