watch this be really easy and im just making it hard....

but anyway, i've tried this one, i swear, like five times (no lie) and i got different answers everytime. help!!

the problem says:

"solve the system of linear equations using a combination of the Methods of Eliminations and Back Substitution."

x-2y+z=8

2x-6y-11z=4

3x-6y+10=6