1. The problem statement, all variables and given/known data 2. Relevant equations SUM OF FORCES / BALANCING 3. The attempt at a solution Hey all, the question and my illustration are posted above. My main question is which blocks do the three Tension values I circled go? Are they all tied into the diagonal where the rope meets or do they go in the force equations for their respective blocks? Once I figure that out I can use the force equations and balance everything to find the mass of the hanging block. Thank you for any help, I appreciate it EDIT* Also if my illustration is just flat out wrong , I apologize and will give it another shot. I feel like it's right but I'm still learning the very basics and struggling. Thank you!