SOLUTION: solve the system of equation x+y+z=9 -x+y+z=1 x-y-z=5 would appreciate some help

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Question 1107088: solve the system of equation x+y+z=9
-x+y+z=1
x-y-z=5
would appreciate some help
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve the system of equation
x+y+z=9
-x+y+z=1
x-y-z=5
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Adding eqns 2 & 3 --> 0 = 6