Find the complete solution of the linear system, or show that it is inconsistent. $$\left\{\begin{array}{rr} x-y+z= & 0 \\ y+2 z= & -2 \\ x+y-z= & 2 \end{array}\right.$$
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\end{aligned} $$ Now we can substitute these values into the second equation to check if it is satisfied: $$ y + 2z = -2 \quad \Rightarrow y = 0. $$ Show more…
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