$\begin{array}{1 1}(a)\;(x^2-y^2-10x-y)+\large\frac{22}{23}\normalsize(x^2+y^2+x-3y-\large\frac{23}{2})\normalsize=0\\(b)\;(x^2+y^2+10x-y)+\large\frac{22}{23}\normalsize(x^2+y^2+x-3y-\large\frac{23}{2})\normalsize=0\\(c)\;(x^2-y^2-10x-y)+\large\frac{23}{22}\normalsize(x^2+y^2+x-3y-\large\frac{23}{2})\normalsize=0\\(d)\;(x^2-y^2-10x-y)+\large\frac{12}{23}\normalsize(x^2+y^2+x-3y-\large\frac{23}{2})\normalsize=0\end{array}$