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9 August, 07:39

3b-2 / 2 = b-2 / 4 solve the proportion

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  1. 9 August, 07:44
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    b=2/5

    Step-by-step explanation:

    (3b-2) / 2 = (b-2) / 4

    cross product

    2 (b-2) = 4 (3b-2)

    2b-4=12b-8

    2b-12b-4=-8

    -10b-4=-8

    -10b=-8+4

    -10b=-4

    10b=4

    b=4/10

    simplify

    b=2/5
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