Question

помогитее, даю 20 баллов, координация​

Answer 1

$\left\{\begin{array}{l}5y-x=6\\3x-7y=6\end{array}\right\; \; \left\{\begin{array}{l}x=5y-6\\5y-x=3x-7y\end{array}\right\; \; \left\{\begin{array}{l}x=5y-6\\12y=4x\end{array}\right\\\\\\\left\{\begin{array}{l}3y=5y-6\\x=3y\end{array}\right\; \; \left\{\begin{array}{l}-2y=-6\\x=3y\end{array}\right\; \; \left\{\begin{array}{l}y=3\\x=9\end{array}\right\\\\\\Otvet:\; \; (9;3)\; .$