How can one fourthx − 3 =one halfx + 8 be set up as a system of equations?

a 4y + 4x = −12
2y + 2x = 16

b 4y − x = −12
2y − x = 16

c 4y + x = −12
2y + x = 16

d 4y − 4x = −12
2y − 2x = 16