a11*x1+a12*x2=b1 a21*x1+a22*x2=b2

Дано $$a_{11} x_{1} + a_{12} x_{2} = b_{1}$$ a21*x1 + a22*x2 = b2 $$a_{21} x_{1} + a_{22} x_{2} = b_{2}$$ Ответ $$a_{111} = – frac{1}{x_{1}} left(a_{12} x_{2} – b_{1}right)$$=$$frac{1}{x_{1}} left(- a_{12} x_{2} + b_{1}right)$$= -(-b1 + a12*x2)/x1 $$a_{211} = –…

11*q/10+56*w/5+111*e/10-131*r/10=13/10 -33*q/10+11*w/10+301*e/10-201*r/10=11/10 15*q/2+31*w/10+11*e/10+10*r=20 17*q/10+15*w/2-9*e/5+21*r/10=11/10

Дано $$- frac{131 r}{10} + frac{11 q}{10} + frac{56 w}{5} + frac{111 e}{10} = frac{13}{10}$$ -33*q 11*w 301*E 201*r 11 —– + —- + —– – —– = — 10 10 10 10 10 $$- frac{201 r}{10} + frac{1}{10} left(-1…