Please help with these two questions

1. String one has 25 g on its mass hanger and is located at an angular position of 0. String two has 38 g of mass on the mass hanger and is located at an angular position of 180. Is there a third string that can be added such that it brings the system into equilibrium if the angular position of this third string is not 0 or 180? Support your answer with a detailed explanation or mathematical analysis. 2. String one has a mass of 13 g on its mass hanger and so does string two. If string three has a mass of 39 g on it, is it possible to adjust the angular positions of the strings (or pulleys) so that the system is in equilibrium? Support your answer with a detailed explanation or mathematical analysis