Решите систему уравнений:

\(\displaystyle\begin{aligned}\begin{cases}3x-8(3y+2)=17{\small,}\\7(x+4)+5y=4y-9{\small.}\end{cases}\end{aligned}\)

\(\displaystyle x=\) [ ] \(\displaystyle ;\)\(\displaystyle y=\)  [ ]\(\displaystyle .\)