Question

Solve this system w/Elimination
x+y+z=3
2x-y+z=2
z-2y+2z=1

Answer 1

For the last equation, did you mean to write x-2y+2z=1?

Answer 2

yes

Answer 3

scale the top equation to eliminate the same variables in the bottom 2

this turns the solution process into a system of 2 eqs with 2 unknowns

scale one to eliminate the a variable in the other which creates a system of
1 eq with 1 unknown

solve the unknown and work it back up thru the others