Question

.............................................

Answer 1

(180*6+y+12)/6(y+12)=180/y
(1092+y)*y=180*6(y+12)
y²+1092y=1080y+12 960
y²+1092y-1080y-12960=0
y²+12y-12960=0
D=144+51840=51984=228²
y1=(-12-228)/2= -120
y2=(-12+228)/2=108