y = 2x + 3, 3x + y = 18

Frequently Asked Questions

• 使用替换法求解 \({ y = 2x + 3, 3x + y = 18 }\)

  

  $$\left(x,y\right)=\left(3,9\right)$$

• 使用消元法求解 \({ y = 2x + 3, 3x + y = 18 }\)

  

  $$\left(x,y\right)=\left(3,9\right)$$

• 使用 Gauss-Jordan 方法求解 \({ y = 2x + 3, 3x + y = 18 }\)

  

  $$\left(x,y\right)=\left(3,9\right)$$

• 使用克莱默规则求解 \({ y = 2x + 3, 3x + y = 18 }\)

  

  $$\left(x,y\right)=\left(3,9\right)$$

• 确定直线是否平行、垂直或两者都不平行 \({ y = 2x + 3, 3x + y = 18 }\)

  

  $$\text{Neither parallel nor perpendicular}$$