Divide both sides by 2:
[tex]2y>4\rightarrow\frac{2y}{2}>\frac{4}{2}\rightarrow y>2[/tex]Note: Remember that dividing or multiplying by a negative number turns the inequality around! In this case we divided by a positive number, so it stayed the same.
This way, the simplified expression would be:
[tex]y>2[/tex]