y = 5 x - 7 \text { và } y = 3 x + 1
Evaluate (complex solution)
y=5x-7vyà\text{ and }5x-7vyà=3x+1
Solve for x
\left\{\begin{matrix}x=\frac{7và+1}{2-21và}\text{, }&y=\frac{5}{2-21và}\text{ and }v\neq \frac{2}{21à}\text{ and }à\neq 0\\x=\frac{1}{2}=0.5\text{, }&y=\frac{5}{2}\text{ and }à=0\end{matrix}\right.
Solve for à
\left\{\begin{matrix}à=\frac{5x-y}{7vy}\text{, }&y=3x+1\text{ and }x\neq -\frac{1}{3}\text{ and }v\neq 0\\à\in \mathrm{R}\text{, }&y=\frac{5}{2}\text{ and }v=0\text{ and }x=\frac{1}{2}\end{matrix}\right.
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