Tip - How to remove a closed account reported delinquent on payments?

I have credit cards on my report that have long since been closed. There are no negative entries on any of these accounts, I simply didn't like the service or company and went elsewhere. I don't have eleven cards in use. I actually only keep and use one card. I have to think the eleven cards showing on my account is impacting my credit score. Any feed back would be appreciated. Thanks
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