The phrase "how can this equation work" often appears as a question in puzzle or brain teaser games, where the solution involves thinking outside the box rather than standard math. For example, in the Brain Test game (Level 70), the way to make the equation work is to take the level number (70) and place it before the number 50, creating a valid number or expression. This is more a trick or puzzle than a mathematical equation operation. For another example in Brain Test Level 123, the equation looks incorrect but can be solved by removing part of the equation (like "7+6+") to make it work visually or logically within the game. So, often these "equations" are part of puzzle games requiring creative or visual manipulation rather than conventional math rules to "work".

If the question refers to a specific equation, context or the equation itself would be needed for a more precise explanation. But as a general approach for "how can this equation work" in puzzling contexts, it usually involves stepping outside typical mathematical operations and interpreting the problem visually or as a puzzle mechanic.