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' ./ " ! (! β 7 6 addcol(A1,1,2,-1); 2 = I > addrow(A1,2,3,-9); 2 = I > solve({x1-x2+x3=1,4*x1-5*x2-5*x3=4,2*x1+x2-x3=2,x1+2*x2-2*x3=1},{x1,x2,x3}); = =/ = 2 N # 1 /! $ ( ! ! #5 ( $ ( ! ( ! !% ! ! $ linsolve(A,B)/ 4( ! 4( !" $ ! ( ! = : > A:= matrix([[1,2,2],[1,1,3],[-2,0,1]]); M 2 :; 2 B:=matrix([[3],[2],[1]]); :; > linsolve(A,B);B:=col(Am,4); > linsolve(A,B);
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