Problem

\( \begin{array}{l}x+y=9 \\ 2 x-3 y=3\end{array} \)

Answer

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Answer

\( y=3 \)

Steps

Step 1 ：\( y=9-x \)

Step 2 ：\( 2x-3(9-x)=3 \)

Step 3 ：\( x=6 \)

Step 4 ：\( y=3 \)

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