If

\begin{align*}
3x+4y-12z&=10,\\
-2x-3y+9z&=-4,
\end{align*}

compute $x$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
If

\begin{align*}
3x+4y-12z&=10,\\
-2x-3y+9z&=-4,
\end{align*}

compute $x$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
14
If

\begin{align*}
3x+4y-12z&=10,\\
-2x-3y+9z&=-4,
\end{align*}

compute $x$.
train