SOLUTION: What does x,y,z equal. -2x-5y+4z=21 -5x-5y=z=21 -4y-4z=8

Algebra ->  Matrices-and-determiminant -> SOLUTION: What does x,y,z equal. -2x-5y+4z=21 -5x-5y=z=21 -4y-4z=8      Log On


   

Question 240130: What does x,y,z equal.
-2x-5y+4z=21
-5x-5y=z=21
-4y-4z=8
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The 2nd eqn has too many equal signs.