A = [-2.8  0   0   0   0  0.8  0   0   0   0;
      2  -2.8  0   0   0   0  0.8  0   0   0;
      0    2 -2.8  0   0   0   0  0.8  0   0;
      0    0   2 -2.8  0   0   0   0  0.8  0;
      0    0   0   2 -2.8  0   0   0   0  0.8;
      0.8  0   0   0   0 -1.8  1   0   0   0;
      0   0.8  0   0   0   0 -1.8  1   0   0;      
      0    0  0.8  0   0   0   0 -1.8  1   0;      
      0    0   0  0.8  0   0   0   0 -1.8  1;    
      0    0   0   0  0.8  0   0   0   0 -1.8];
   
      
b = [-200 0 0 0 0 0 0 0 0 -10];

disp(eliminate(A,b));