begin{arrayl2x+3y=12x-y=1endarray.

常见问题解答

• 使用替换法求解 $\{\begin{array}{l}2x+3y=12\\ x-y=1\end{array}$

  

  $$\left(x,y\right)=\left(3,2\right)$$

• 使用消元法求解 $\{\begin{array}{l}2x+3y=12\\ x-y=1\end{array}$

  

  $$\left(x,y\right)=\left(3,2\right)$$

• 使用 Gauss-Jordan 方法求解 $\{\begin{array}{l}2x+3y=12\\ x-y=1\end{array}$

  

  $$\left(x,y\right)=\left(3,2\right)$$

• 使用克莱默规则求解 $\{\begin{array}{l}2x+3y=12\\ x-y=1\end{array}$

  

  $$\left(x,y\right)=\left(3,2\right)$$

• 确定直线是否平行、垂直或两者都不平行 $\{\begin{array}{l}2x+3y=12\\ x-y=1\end{array}$

  

  $$\text{既不平行也不垂直}$$