Answer:
None of those choices work.
A. 4(2y-9)
Step-by-step explanation:
Both terms are divisable by 4 and would bring them to the smallest whole degree
x = 15
y = 63
9x - 7 + 4x - 8 = 180
13x = 195
9x - 7 = 2y + 2
126 = 2y