Explain to your reader for them to understand your argument—what ideas and theories support the argument you want to make? Keep them and eliminate the rest. Revise what remains into a schema-activating setting for your reader that prepares them to process your argument through your perspective—attending to your values and premises. Then start proving to them your interpretation is the right one through claims and evidence.
The remaining 6 pages should be devoted to introducing the issue or problem you want to address—think carefully about why your argument is important to you, and what about the world might shift or change if your audience adopted your argument as true, and describing the best possible course of action.