Answer:
2x-y+3z=1,-3x+4y-5z=0,x+3y-6z=0
Step-by-step explanation:
1. 2x+y+z=5,3x+5y+2z=15,2x+y+4z=8
2. 2x+5y=16,3x+y=11
3. 2x+5y=21,x+2y=8
4. 2x+y=8,x+2y=1
5. 2x+3y-z=5,3x+2y+z=10,x-5y+3z=0
6. x+y+z=3,2x-y-z=3,x-y+z=9
7. x+y+z=7,x+2y+2z=13,x+3y+z=13
8. 2x-y+3z=1,-3x+4y-5z=0,x+3y-6z=0