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5 September, 18:01

Solve S=n/2 (a+b) for b

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  1. 5 September, 18:03
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    2S/n - a = b

    Step-by-step explanation:

    S=n/2 (a+b)

    Multiply each side by 2

    2S = n/2 * 2 (a+b)

    2S = n (a+b)

    Divide each side by n

    2S/n = n/n (a+b)

    2S/n = a+b

    Subtract a from each side

    2S/n - a = a+b-a

    2S/n - a = b
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