What is the sum of X+XX+XXX+XXXX?

Read also:

• Why do women have sex with dogs?
• Why can't they repair the damage caused by Elon Musk renaming Twitter to X?
• Why do a lot of women have a crush on my boyfriend when they know he is in a relationship with me? I am starting to feel insecure too. What should I do?
• Why do gun owners feel the need to defend themselves with deadly weapons? Can they not just talk things out like civilized people do?
• NASA Goddard Center-wide Email - NASA Watch
• I am still studying engineering. I feel worried being an average student. Can I get a good job in placement, buy a house, and a car? I don't know why I feel this.
• Who writes and reads novels nowadays?
• Can people who have never met you tell if you are a covert narcissist?
• Do empaths fall easier for abusive people?
• Why does Rahul Gandhi have so many haters?
• Why do creationists ask for proof of evolution and then ignore the answers?
• What is it like to be the slave in a mistress-slave relationship?