SOLUTION: solve if possible 3x+y+z=0 2x-y+z=0 2x+y+z=0

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Question 392024: solve if possible 3x+y+z=0
2x-y+z=0
2x+y+z=0
Found 2 solutions by Alan3354, edjones:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
3x+y+z=0
2x-y+z=0
2x+y+z=0
.
2x-y+z=0
2x+y+z=0
---------add
4x+2z=0
.
2z=-4x
z=-2x
.
2x-y+z=0
2x-y-2x=0
-y=0
y=0
.
3x+y+z=0
3x+0-2x=0
x=0
.
z=0
.
Ed