What is the balanced net ionic equation of mixed K3CO3 and NH4OH solutions?

Question

K+(aq) + OH–(aq) → KOH(s)
2NH4+(aq) + CO32–(aq) → (NH4)2CO3(s)
NR
NH4+(aq) + CO32–(aq) → NH4CO3(s)

Answer 1

3K+(aq) + CO32–(aq) + 3NH4+(aq) + 3OH–(aq) → 3KOH(s) + (NH4)3CO3(s)