Summarize the following:
Go to https://www.facebook.com/help/contact/260749603972907 in your computer's web browser. This form allows you to request that Facebook reactivate your account.  There are no guarantees that Facebook will react to your appeal. Depending on the actions which led to your account being deactivated, it may be impossible for you to reactivate the account. Type the email address or phone number which you use to log into Facebook into the "Login email address or mobile phone number" text box near the top of the page. In the "Your full name", type in the full name that appears on your Facebook account. Depending on your Facebook settings, the name that you enter here may differ from your full legal name. Click the grey Choose Files button below the "Your ID(s)" heading, select photos of the front and back of your ID, and click Open.  If you don't have photos of your ID on your computer, you'll have to use your computer's webcam to take pictures of your ID, or transfer them from a camera or phone to your computer. IDs can include drivers licenses, passports, state ID, and school ID. In the "Additional info" text box, enter any information that you think may help Facebook decide to reactivate your account.  This is your chance to explain any circumstances or events leading up to the deactivation. For example, if your account was hacked, this is a good place to mention it. It's a blue button at the bottom of the page. Your appeal will be sent to Facebook for review; you can expect your account to be reactivated within two weeks if Facebook decides to do so.

Summary:
Open the "My Personal Account was Disabled" page. Enter your email address or phone number. Add your name. Upload identification. Add any necessary details. Click Send.