Solve Systems of Linear Equations in Three Variables
-$$\begin{aligned}
x + y + z & = - 9 \
x - y + 4 z & = - 9 \
2 x + 2 y + 2 z & = - 13
\end{aligned}$$

Question

Solve Systems of Linear Equations in Three Variables 
-$$\begin{aligned}
x + y + z & = - 9 \
x - y + 4 z & = - 9 \
2 x + 2 y + 2 z & = - 13
\end{aligned}$$

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The Answer of Solve Systems of Linear Equations in Three Variables 
-$$\begin{aligned}
x + y + z & = - 9 \
x - y + 4 z & = - 9 \
2 x + 2 y + 2 z & = - 13
\end{aligned}$$

Solve Systems of Linear Equations in Three Variables
- $\begin{aligned}x + y + z & = - 9 \\x - y + 4 z & = - 9 \\2 x + 2 y + 2 z & = - 13\end{aligned}$

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Solve Systems of Linear Equations in Three Variables - x+y+z=−9x−y+4z=−92x+2y+2z=−13\begin{aligned}x + y + z & = - 9 \\x - y + 4 z & = - 9 \\2 x + 2 y + 2 z & = - 13\end{aligned}x+y+zx−y+4z2x+2y+2z​=−9=−9=−13​

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Solve Systems of Linear Equations in Three Variables
- $\begin{aligned}x + y + z & = - 9 \\x - y + 4 z & = - 9 \\2 x + 2 y + 2 z & = - 13\end{aligned}$

Correct Answer:
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