\begin{tabular}{c|r|} 2x−y+z−1=0 & c) 2x−6y+4z−7=0 \\ x+y+z−6=0 & 3x−9y+6z−2=0 \end{tabular}
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answerhappygod
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\begin{tabular}{c|r|} 2x−y+z−1=0 & c) 2x−6y+4z−7=0 \\ x+y+z−6=0 & 3x−9y+6z−2=0 \end{tabular}
\begin{tabular}{c|r|} 2x−y+z−1=0 & c) 2x−6y+4z−7=0 \\ x+y+z−6=0 & 3x−9y+6z−2=0 \end{tabular}
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