Question 818108
seats in each row =x
number of rows = y

x=y+8
x-y=8....................(1)

xy=1505
x= 1505/y..................(2)

1505/y -y = 8

1505-y^2=8y

y^2+8y-1505=0

y^2+43y-35y-1505=0

y(y+43)-35(y+43)=0

(y+43)(y-35)=0
y=-43 OR 35

There are 35 seats in each row and 43 rows