easy way to solve elementary row or column transformation
Thereisnoassuchtrickforsolving3×3ordermatrixbyelementaryrowtransformation.Wejustneedtokeepinmindthat,whileconvertingthemainmatrixintoidentitymatrix,weshouldnotdisturbtheelementconvertedinprevioussteps.So,iamsuggestingyouapath,toconvertthematrixintoidentitymatrix.Thispathwillenableyoutoproceedsuccessfully.Firstofallmakea11=1,thena21=0,a31=0,a32=0,a33=1,a23=0,a22=1,a12=0,a13=0.. similarly in column transformation.. try it.. rok on..:)