Oxygens don't count, so that means our x is six. So we have two multiplied by seven, which is 14 plus two. That gives us 16 minus we said that it was six for x. So we get 16 minus six divided by two gives us five. So 16 minus six of ten divided by two gives us five. So this means we have some combination of pi bonds and ring structures, such that when I add up my ring structures and pi bonds, I get five.