Verified Answer :

oYOLOo

The first one would be the right one!
  
you just take all the y one side and the numbers on one side 
 so 8y+4= 6+3y

now 8y-3y= 6-4

therefore 5y = 2 
 
!!

So, with this I'm pretty sure you have to get all variables and all normal numbers on the same sides SO if 8y+4=6+2y+1y, then you must get the 4 over to 6 so then the equation would be, 8y=-4+6+2y+1y and the 2y and 1y (or 3y) must change to the other side so then it would be 8y-3y=-4+6. Then you just simplify to 5y=2. Therefore, your answer is A. 

Steps
8y+4=6+2y+1y
8y=-4+6+2y+1y
8y-3y=-4+6
∴ 5y=2



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