Which equation is equivalent to 4x 5y 7?

Well, isn't that a happy little equation we have there! To make it look a bit tidier, we can rearrange it as 4x + 5y = 7. That way, it's easier to see the relationship between x, y, and the constant term. Just remember, math is like painting - with a few brushstrokes, you can transform something complex into something beautiful.