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Solve the System (4x+7y7z=222x2y+6z=125x4y+7z=7)\left( \begin{array} { c } 4 x + 7 y - 7 z = 22 \\2 x - 2 y + 6 z = - 12 \\5 x - 4 y + 7 z = - 7\end{array} \right)

question 203

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Solve the system. (4x+7y7z=222x2y+6z=125x4y+7z=7)\left( \begin{array} { c } 4 x + 7 y - 7 z = 22 \\2 x - 2 y + 6 z = - 12 \\5 x - 4 y + 7 z = - 7\end{array} \right)


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