Question

срочно даю 50 баллов​

Answer 1

Ответ: на фото......

Answer 2

$\left\{\begin{array}{l}2x-y=6\\x-1,5y=12\end{array}\right\; \; \left\{\begin{array}{l}2(1,5y+12)-y=6\\x=1,5y+12\end{array}\right\; \; \left\{\begin{array}{l}3y+24-y=6\\x=1,5y+12\end{array}\right\\\\\\\left\{\begin{array}{ccc}2y=-18\\x=1,5y+12\end{array}\right\; \; \left\{\begin{array}{ccc}y=-9\\x=-1,5\end{array}\right\qquad \Rightarrow \quad (\, -1,5\; ;\; -9\; )\; -\; otvet$