pls no guessing or dumb answers. I've been working on this problem for days and I get nothing, so someone pls pls pls help me

Answer:
They're all equal
Step-by-step explanation:
First one is 1/6x-1/2
Second one is 1/6x-1/2
The third one is also 1/6x-1/2
Answer:
they are all equal
Step-by-step explanation:
hope i could help