If the system of equations  \begin{align*}
3x+y&=a,\\
2x+5y&=2a,
\end{align*} has a solution $(x,y)$ when $x=2$, compute $a$.
Question:
If the system of equations  \begin{align*}
3x+y&=a,\\
2x+5y&=2a,
\end{align*} has a solution $(x,y)$ when $x=2$, compute $a$.
Answer:
Let's think step by step.

user
\frac{26}{3}
If the system of equations  \begin{align*}
3x+y&=a,\\
2x+5y&=2a,
\end{align*} has a solution $(x,y)$ when $x=2$, compute $a$.
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