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