Решите систему уравнений: \(\begin{aligned}\begin{cases}7y-4x=47{,}\\(6+x)^2-(9-x)^2=-27y{.}\end{cases}\end{aligned}\) \( x=\) \( ;\)\( y=\) \( .\)

Задание

Решите систему уравнений:

\(\displaystyle\begin{aligned}\begin{cases}7y-4x=47{\small,}\\(6+x)^2-(9-x)^2=-27y{\small.}\end{cases}\end{aligned}\)

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