Question 33599
THE GIVEN EQUATIONS ARE 

    3x -2y =11
    -x +6y = 7
to find the variables x & y,

  try to make any one of the co-efficients of x  or y as same  but with opposite sign.(to make x co-efficients the same,multiply the second equation by 3)

therefore we get ,
            3x -2y    = 11
            -3x + 18y = 21
  TO solve,add the equations ,
   we get    16y = 32     (3x-3x get cancelled)
               y= 32/16
                 = 2.
 put y= 2 in first equation,
  we get,
    3x -2(2) = 11
     3x = 11 +4
       x = 15/3
         = 5.
  the values are x = 5,y = 2.

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