I've spent more than 3 hours with the idea that we should find current across every resistor in terms of \$i_{10}\$. This is somehow not working, I mean putting the KCL (Kirchoff's Current Law) equations of different nodes into each other just makes left and right sides equal. It doesn't give any value of \$i_{10}\$. The dependent current source only makes it more difficult. Please guide me on the best approach to solve this question or if you're kind enough give the solution.
The solution will be highly appreciated!