Move a single match to make the following expression true:
So far I've found 6 valid solutions, can you find all 6? (or more!)
Edit: Lots of great, creative answers! All 6 I found are represented among the answers, plus quite a few more!
A few clarifications:
- I changed "equation" to "expression" in the title and question, for the mathematically pedantic. This officially allows for inequalities.
- The expression still has to logically evaluate to true or false in a boolean sense. So "8 + 4 - 4" wouldn't count, even though it might be treated as TRUE by most programming languages.
- You're not limited to "perfectly-formed" LED-style numbers, although using a single vertical match as a "1" is kind of stretching it. But I'll allow it, if it gets us more good answers.