Let's solve the mathematical question.

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Hello friends.
Today i was doing some questions in mathematics. After sometime i did few questions and i faved a problem which i didn't solved. It tried for more than a hour to find the solution but i didn't get a sollution.
So i thought that i should share the problem with my SteemIt friends and i am going to publish the problem.
You guys can see the problem in image below:
69n1w17ats.jpg

If anyone can solve this please send me a reply on this post.
Thank you.