1. The problem statement, all variables and given/known data Find ix and Valpha 2. Relevant equations KCL KVL 3. The attempt at a solution How do I determine the number of KCL and KVL equations? In this problem I am solving, there are 6 unknowns so I need 6 equations. I can write 4 independent KCL equations, 1 KVL at loop 1(to include the Valpha variable) and 1 KVL at loop 4. But these 6 equations result to math error on my solver. Is this because Valpha appeared only once in all equation? Can I also KVL on combined loop 2 and 3 to produce another equation with Valpha? TL;DR 4 KCL equations, KVL at loop 1, KVL at loop 4 = math error Should I use 4 KCL, KVL at loop 1, KVL at combined loop 2 and 3? Also, in solving circuits using KCL and KVL only(mesh and nodal not allowed yet), is it possible to use different sets of equation to solve circuits?