Answer:
y = 2.
Explanation:
We need to have y terms on one side of the equation and numbers on the other side:-
3y - 4 = 6 - 2y 
 Add 2y to both sides: 
3y + 2y - 4 = 6 - 2y + 2y
5y - 4 = 6 
 Add 4 to both sides: 
5y - 4 + 4 = 6 + 4
5y = 10
y = 10/5
y = 2.