Question

помогите пж ребята!!!!

Answer 1

y/12-2=(y-186)/84
(y-24)/12=(y-186)/84
((y-24)/12)-((y-186)/84)=0
(7y-168-y+186)/84=0
7y-168-y-186=0
6y+18=0
6y=-18
y=-3