Germany | Can you solve this? | Math Olympiad Problem

[@thelifeclass]

Interesting 🎉

[@jagadiswarchakraborty295]

Thanks

[@MasterTMathsClass]

Welcome

[@argi0774]

Solved in seconds from the thumbnail

[@hulyaaycan4660]

Maşaallah tebrik ederim.

[@MasterTMathsClass]

Thank you 🎉

[@DenisCartotto]

There is an other solution:
x = ln18/(3ln2)