X:6,25=8

It appears there might be a formatting issue or missing context in your expression "X:6,25=8".

If you are trying to set up an equation or a mathematical expression, could you please clarify what the symbols and numbers represent? For example:

• Is "X" a variable?
• Is the colon ":" representing division or a ratio?
• Are the commas "," separating different values or decimal points?

Please provide the intended context or rephrase your question so I can assist you better.