[Solution] Solve by the addition method 3/7x+5/9y=27 , 1/9x+2/7y=7
Question: Solve by the addition method
\[\begin{aligned} & \frac{3}{7}x+\frac{5}{9}y=27 \\ & \frac{1}{9}x+\frac{2}{7}y=7 \\ \end{aligned}\]
Deliverable: Word Document 
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