Answer
The solution of this system is ${(-1 ,0 ,0 ,1)}$
Work Step by Step
System ${x+y+2z-w=-2 ,3y+z+2w=2 ,x+y+3w=2 ,-3x+z+2w=5}$
Start with the augmented matrix row echelon form (Gauss-Jordan) as shown in the image below
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