SOLUTION: How do you solve this three-variable system? {x+2y+z=4 {2x-y+4z=-8 {-3x+y-2z=-1

Algebra ->  Systems-of-equations -> SOLUTION: How do you solve this three-variable system? {x+2y+z=4 {2x-y+4z=-8 {-3x+y-2z=-1      Log On


   

Question 363584: How do you solve this three-variable system?
{x+2y+z=4
{2x-y+4z=-8
{-3x+y-2z=-1
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
there's more than one way to do it.
I made an Excel sheet that does them using determinants.
--------
You can check you answers:
x = 3
y = 2
z = -3