Пошаговое объяснение:
x-2y+2z=11
x=11+2y-2z
x= 11+2y-2z
3x+y-z=-2
3x=-2-y+z
x=-2/3-1/3y+1/3z
x= -2/3-1/3y+1/3z
2x+y+z=3
2x=3-y-z
x=3/2-1/2y-1/2z
Пошаговое объяснение:
x-2y+2z=11
x=11+2y-2z
x= 11+2y-2z
3x+y-z=-2
3x=-2-y+z
x=-2/3-1/3y+1/3z
x= -2/3-1/3y+1/3z
2x+y+z=3
2x=3-y-z
x=3/2-1/2y-1/2z
x=3/2-1/2y-1/2z