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9 August, 14:34

Who to solve 6n+2f=736 and 10n+2f=920 by doing elimination

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  1. 9 August, 14:44
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    A) 6n+2f=736

    B) 10n+2f=920

    Multiply equation A) by - 1

    A) - 6n - 2f = - 736 Then add to equation B)

    B) 10n+2f=920

    4n = 184

    n = 46

    B) 10*46 + 2f = 920

    B) 460 + 2f = 920

    B) 2f = 460

    B) f = 230
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