solve the system of equation using elimination or state that the system is inconsistant or dependent
3x-y-z=-1
x+y+2z=8
6x-2y-2z=5

Question

solve the system of equation using elimination or state that the system is inconsistant or dependent
3x-y-z=-1
x+y+2z=8
6x-2y-2z=5

anonymous · Answer

Adding the first two equations together will eliminate y.

anonymous · Answer

yes i know, but this problem just confuses me so much.

anonymous · Answer

You can add twice the second equation to the third to eliminate y from there as well, then you can start working on x and z.

anonymous · Answer

ok, i see what to do now. thanks again !

anonymous · Answer

You're welcome.
Make sure to check your solutions in the original equations to make sure they work.