China | Can you solve this? | A Nice Math Olympiad Algebra Problem

[@ГалинаПархомчик]

Спасибо!!! Очень интересно и полезно

[@AaBb-yv5tj]

เยี่ยม

[@herobrine8763og]

Btw if x=0, then 0=10. So x isn’t 0 and therefore he can divide both sides by x

[@johnnycaptain5702]

Hello! I also calculated it. When a and b are real numbers, the result of my calculation is that the value of a+b is 1,5,±10. So, there is one thing to be concerned about in your calculations. The point is that it is X÷X. This is because if X=0, 0÷0 becomes undefined. Thank you for your support.