I-evaluate (complex solution)
2y-as_{4}x\xi =\frac{37x}{10}-2y\text{ and }\frac{37x}{10}-2y=5
I-solve ang ξ
\left\{\begin{matrix}\xi =\frac{37x-100}{10as_{4}x}\text{, }&y=\frac{37x}{20}-\frac{5}{2}\text{ and }x\neq 0\text{ and }s_{4}\neq 0\text{ and }a\neq 0\\\xi \in \mathrm{R}\text{, }&\left(s_{4}=0\text{ or }a=0\right)\text{ and }y=\frac{5}{2}\text{ and }x=\frac{100}{37}\end{matrix}\right.
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