Question 98829


               4K-3=3K+4 
5M+3=3M+9 
8-X=2X-1 
2N-5=8N+7 

    1) 4K-3 = 3K+4
       4K-3K = 4+3
          K  = 7

    2) 5M+3 = 3M+9

       5M-3M = 9-3
           2M = 6
            M = 6/2 = 3
            M = 3

    3)8-X = 2X-1

      -2X-X = -1-8
        -3X = -9
          X = -9/-3
            = 3
         X = 3

    4)2N-5 = 8N+7

      2N-8N = 7+5
        -6N = 12
          N = 12/-6 = -2
          N = -2