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5 August, 03:59

15 - 5b = - 10b - 20

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Answers (2)
  1. 5 August, 05:07
    0
    Step-by-step explanation:

    15 - 5b = - 10b - 20

    15 - 5b + 10b = - 10b + 10b - 20

    15 + 5b = - 20

    15 - 15 + 5b = - 20 + - 15

    5b = - 35

    b = - 7
  2. 5 August, 05:36
    0
    b = - 7

    Step-by-step explanation:

    Isolate the variable by dividing each side by factors that don't contain the variable.
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