Answer:
y=4
Step-by-step explanation:
9/4y-12=1/4y-4
Subtract 1/4y from each side
9/4y - 1/4 y-12=1/4y- 1/4 y-4
8/4y -12 = -4
Add 12 to each side
8/4 y -12+12 = -4+12
8/4 y = 8
Simplify the left hand side
2y = 8
Divide each side by 2
2y/2 = 8/2
