I do not know if you want to solve for y or solve for x so I will do both.
Solve for x:
\(3+6x=11-4y\)
\(6x=8-4y\)
\(x=\frac{8-4y}{6}\)
Solve for y:
\(3+6x=11-4y\)
\(-8+6x=-4y\)
\(\frac{-8+6x}{-4}=y\)
\(y=\frac{-8+6x}{-4}\)\(\)