system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
X, Y, Z are three ions permeable through cell membrane X = –50 and Y = –30. If at RMP, when there is no net electrogenic transfer. What is the value of Z?
assistant
The correct answer is  At RMP, X + Y + Z = 0
X = –50, Y = –30 , So Z must be +80