Which system of equations is equivalent to this system?
4(x + y) = 2x + 12
4x + y = x+8
6x + 4y = 12
3x + y = 8
- 4x + 4y = 48
3x + y = 8
4r + 4y = 48
3x + y = 8
2x + 4y = 12
3x + y = 8​