Question: (left{begin{array}{ccc}x-3 y & = & -9 2 x+5 y & = & 4end{array} ight.) Solve the systems of equations by substitution.

\(\left\{\begin{array}{ccc}x-3 y & = & -9 \\ 2 x+5 y & = & 4\end{array}\right.\)

Solve the systems of equations by substitution.

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