<prompt> Matricesanzapmatrix a 2 1 4 mwishopmatrix quad textna quad anzapmatrix -frac27 frac1101 7 b frac314 mwishopmatrixni kinyume. Weka jozi iliyoagizwa a,b.  <response>: Bidhaa ya matrices nianzapmatrix a 2 1 4 mwishopmatrix anzapmatrix -frac27 frac17 b frac 314 endpmatrix anzapmatrix 2b - frac2a7 fraca 37 4b - frac27 1 endpmatrix.Tunataka hii iwe kiini cha utambulisho, kwa hivyo 2b - frac2a7 1, fraca 37 0, na 4b - frac27 0. Kutatua, tunapata a,b left -3, frac114 kulia. 