x=-1
y=0
z=1
Пошаговое объяснение:
(x-y+2z)-(x-y-z)=1-(-2)=3
2z+z=3
3z=3
z=3/3
x-y-1=-2
x-y=-2+1
x-y=-1
2x-y+1=-1
2x-y=-1-1
2x-y=-2
2x=y-2
x=(y-2)/2
x=0.5y-1
0.5y-1-y=-1
-0.5y-1=-1
-0.5y=-1+1
-0.5y=0
y=0/(-0.5)
x-0+2*1=1
x-0+2=1
x+2=1
x=1-2
x=-1
y=0
z=1
Пошаговое объяснение:
(x-y+2z)-(x-y-z)=1-(-2)=3
2z+z=3
3z=3
z=3/3
z=1
x-y-1=-2
x-y=-2+1
x-y=-1
2x-y+1=-1
2x-y=-1-1
2x-y=-2
2x=y-2
x=(y-2)/2
x=0.5y-1
0.5y-1-y=-1
-0.5y-1=-1
-0.5y=-1+1
-0.5y=0
y=0/(-0.5)
y=0
x-0+2*1=1
x-0+2=1
x+2=1
x=1-2
x=-1