Вопрос от посетителя:
{a 11X1 a12X2 a13X3 =b1
a 12X1 a 22X2 a 23X3 =b2
a 31X1 a 32X2 a 33X3 =b3
Илюха отвечает:
{a 11X1 a12X2 a13X3 =b1
a 12X1 a 22X2 a 23X3 =b2
a 31X1 a 32X2 a 33X3 =b3
{a 11X1 a12X2 a13X3 =b1
a 12X1 a 22X2 a 23X3 =b2
a 31X1 a 32X2 a 33X3 =b3
{a 11X1 a12X2 a13X3 =b1
a 12X1 a 22X2 a 23X3 =b2
a 31X1 a 32X2 a 33X3 =b3