1)
[tex]\begin{array}{|l} 2x + y = -3 \\ 3x - 2y = -8 \end{array}[/tex]
2)
[tex]\begin{array}{|l} 3(x-2) + y = 9 + x + 2y \\ 2x + 2y = 19 - y \end{array}[/tex]
3)
[tex]\begin{array}{|l} 2x - y = 1 \\ -x + 3y = 2 \end{array}[/tex]
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