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24 August, 15:34

A + b = 9

a - b = 6

what is a/b?

+1
Answers (2)
  1. 24 August, 18:41
    0
    5

    Step-by-step explanation:

    hello:

    a + b = 9

    ... (*)

    a - b = 6 ... (**)

    add (*) and (**) : 2a = 15 ... (1)

    subsct (**) and (*) : 2b=3 ... (2)

    now divid (1), (2) : 2a/2b = 15/3

    means : a/b = 15/3 = 5
  2. 24 August, 19:32
    0
    5

    Step-by-step explanation:

    a = 9 - b

    9 - b - b = 6

    9 - 2b = 6

    9 - 6 = 2b

    3 = 2b

    b = 3/2

    a = 9 - b

    a = 9 - (3/2)

    a = 15/2

    a/b = (15/2) / (3/2)

    a/b = 5
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