同样,在求解三元线性方程组 a1x1+a12x2+a13x3=b1 211 22 2313-72 b 311T43223313-03 其解为 c12413 22 23 3223233 21a22a23 31232a33同样，在求解三元线性方程组 a11x1+a12x2+a13x3=b1 a21x1+a22x2+a23x3=b2 a31x1+a32x2+a33x3=b3 其解为 , 31 32 33 21 22 23 11 12 13 3 23 33 2 22 23 1 12 13 1 a a a a a a a a a b a a b a a b a a x = (5)