Пошаговое объяснение:
1) ... = =
2) -I 2/3- I-6/11 II = -I2/3-6/11 I= 6/11 - 2/3 = (18 - 22)/33 = -4/33
4) 2.7x + 3.6y + 4.5x - 5.8y = 7.2x - 2.2y = 2*(3.6x - 1.1y) =2*() = 2*(-4+0.4) = -7.2
Пошаговое объяснение:
1) ... = =
2) -I 2/3- I-6/11 II = -I2/3-6/11 I= 6/11 - 2/3 = (18 - 22)/33 = -4/33
4) 2.7x + 3.6y + 4.5x - 5.8y = 7.2x - 2.2y = 2*(3.6x - 1.1y) =2*() = 2*(-4+0.4) = -7.2