If the system of equations\begin{align*}
3x+y&=a,\\
2x+5y&=2a,
\end{align*}ha...
Mathematics, 26.09.2021 18:00 natenate32
If the system of equations\begin{align*}
3x+y&=a,\\
2x+5y&=2a,
\end{align*}has a solution $(x, y)$ when $x=2$, compute $a$.
Answers: 3
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