2:X=

It looks like you’re presenting a proportion or ratio. If you mean to express it in equation form, you might be looking for an expression such as \( 2 : X = k \), where \( k \) is some constant or value that relates the two quantities. If you're looking to solve for \( X \) in an equation, it would depend on the context or any additional information given. For example, if you have a specific value that the ratio equals, you can set up an equation to solve for \( X \). Could you please provide more context or specify what you're looking to do with \( 2 : X \)?