Final answer:
Cannot solve for mZ2, m2, and m3 without additional information about the relationship between these variables and the context of the problem.
Step-by-step explanation:
The student is asking to solve for the value of mZ2, as well as for the individual values of m2 and m3 given two equations, m/2 = 8x−20 and mZ3 = 5x + 5. However, without a clear explanation of the symbols and the relationship between m, m2, and m3 in this context, it is not possible to provide an accurate answer. More information is needed to resolve the variables and provide a definitive solution to the problem.