Question 551173
So for the annual fee we have 30 plus the number of movies you see (which we'll call x) times 5.50. On the other hand we just have 8 times the numbers of movies you see (again, we'll call that x)

Set them equal to each other and solve 
{{{30+5.5*x=8*x}}}
Subtract 5.5 from both sides
30=2.5x
Divide both sides by 2.5
x=12