\Ans{Gauss Jordan Method:
	\begin{equation}5x+4y=15\end{equation}
	\begin{equation}
	3x+7y=12
	\end{equation}
	Multiplying $1^{st}$ equation with 3 
	$$15x+12y=45$$ 
	Multiplying $2^{nd}$ equation with 5
	$$15x+35y=60$$
	Subtracting both the equations 
	$$y=\frac{15}{23}=0.6521$$
	Now, putting the value of y in any equation and we get, 
	$$x= \frac{285}{23}=12.391$$}
