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    4. 4(5n-7)=10n+2
    4(5n-7)=10n+2

    can u solve it

    Answer this
    0  Views: 403 Answers: 2 Posted: 12 years ago
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      2 Answers

      HI  4( 5n-7) = 10n + 2       =     20n-28 = 10n + 2      =  20n  =10n + 30    =20n - 10n = 30


      therefore         10n = 30      therefore    n = 3  


      REMEMBER WHEN YOU TAKE NUMBERS FROM ONE SIDE OF THE EQUAL SIGN THEY CHANGE   IE:    + BECOMES -   AND X  BECOMES DIVIDE  AND VISA VERSA


      I HOPE THIS HELPS


      MONDEOMAN

      12 years ago. Rating: 1
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        YES!


        4(5n - 7) = 10n + 2


         20n - 28 = 10n + 2


        -10n +28 = -10n +28


        ----------------------------------------


        10n  =   30


        ------      ------


         10           10


        n  =   3

        12 years ago. Rating: 0
        Comment this answer



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