Whats the formula equation for Copper metal reacting with silver nitrate solution to make silver metal and copper II nitrate?

If the reaction includes copper (II):

Cu + 2AgNO3 yields 2Ag + Cu(NO3)2
If the reaction includes copper (I):
Cu + AgNO3 yields Ag + Cu(NO3)


Then spectator ions are dis regarded:

2Ag[ion] + Cu[metal] --> 2Ag[metal] + Cu[2+ ion]