x=y+5\\x^2-2xy-y^2=17\end{cases}\\\\(y+5)^2-2y(y+5)-y^2=17\\y^2+10y+25-2y^2-10y-y^2=17\\2y^2=8\\y^2=4\\y_1=2\ ;y_2=-2\\x_1=7\ ;x_2=3\\OTBET:(7;2);(3;-2)" alt="\begin{cases}y-x=-5=>x=y+5\\x^2-2xy-y^2=17\end{cases}\\\\(y+5)^2-2y(y+5)-y^2=17\\y^2+10y+25-2y^2-10y-y^2=17\\2y^2=8\\y^2=4\\y_1=2\ ;y_2=-2\\x_1=7\ ;x_2=3\\OTBET:(7;2);(3;-2)" align="absmiddle" class="latex-formula">