Math Question
![Solve by substitution.
\[
\left\{\begin{array}{c}
2 x+y=9 \\
3 x-4 y=8
\end{array}\right.
\]
\( ([?],[]) \)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/3/30/d9792cd7-8baa-41e2-ae2a-4fc1940af84d.jpg "Solve by substitution.
\[
\left\{\begin{array}{c}
2 x+y=9 \\
3 x-4 y=8
\end{array}\right.
\]
\( ([?],[]) \)")
Solution
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