begin{arrayl0.5x+1.2y=7.11.5x-0.8y=2.3endarray.

Frequently Asked Questions

• Solve using the substitution method of $\{\begin{array}{l}0.5x+1.2y=7.1\\ 1.5x-0.8y=2.3\end{array}$

  

  $$\left(x,y\right)=\left(\frac{211}{55},\frac{95}{22}\right)$$

• Solve using the elimination method of $\{\begin{array}{l}0.5x+1.2y=7.1\\ 1.5x-0.8y=2.3\end{array}$

  

  $$\left(x,y\right)=\left(\frac{211}{55},\frac{95}{22}\right)$$

• Solve using the Gauss-Jordan method of $\{\begin{array}{l}0.5x+1.2y=7.1\\ 1.5x-0.8y=2.3\end{array}$

  

  $$\left(x,y\right)=\left(\frac{211}{55},\frac{95}{22}\right)$$

• Solve using the Cramer's rule of $\{\begin{array}{l}0.5x+1.2y=7.1\\ 1.5x-0.8y=2.3\end{array}$

  

  $$\left(x,y\right)=\left(\frac{211}{55},\frac{95}{22}\right)$$

• Determine whether lines are parallel, perpendicular, or neither of $\{\begin{array}{l}0.5x+1.2y=7.1\\ 1.5x-0.8y=2.3\end{array}$

  

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