SOLUTION: What do x, y, and z equal in the following systems with 3 variables? x+y+z=-1 2x-y+2z=-5 -x+2y-z=4

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: What do x, y, and z equal in the following systems with 3 variables? x+y+z=-1 2x-y+2z=-5 -x+2y-z=4      Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 235085: What do x, y, and z equal in the following systems with 3 variables?
x+y+z=-1
2x-y+2z=-5
-x+2y-z=4
Answer by Alan3354(6097) About Me  (Show Source):
You can put this solution on YOUR website!
There's no unique solution.
Adding the 2nd and 3rd equations gives the 1st equation, so they're dependent.