Evaluate (complex solution)
5x=2xy_{5}+y\text{ and }2xy_{5}+y=10
Solve for x
\left\{\begin{matrix}x=\frac{y}{5-2y_{5}}\text{, }&y\neq 0\text{ and }y_{5}=-\frac{y}{4}+\frac{5}{2}\text{ and }y\neq 10\\x=2\text{, }&\left(y_{5}=\frac{5}{2}\text{ and }y=0\right)\text{ or }\left(y=10\text{ and }y_{5}=0\right)\end{matrix}\right.
Solve for y_5
y_{5}=-\frac{y}{4}+\frac{5}{2}
x=2
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