Equations by gauss-jordan method, Mechanical Engineering

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a) Answer the following equations by Gauss-Jordan method

x1 +2x2+x3 =8 ; 2x1+3x2+4x3 =20; 4x1+3x2+2x3 = 16

b) Answer the following equations by Relaxation method

10x-2y-2z =6 ; -x+10y-2z =7 ; -x-y +10z =8.


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