What is the balanced net ionic equation of mixed AgNO3 and MgBr2 solutions?

Question

-Ag3+(aq) + 3Br–(aq) → AgBr3(s)

-Mg2+(aq) + NO3–(aq) → Mg(NO3)2(s)

-Ag+(aq) + Br2–(aq) → AgBr2(s)

-Ag+(aq) + Br–(aq) → AgBr(s)

Answer 1

Ag+(aq) + 2Br-(aq) + Mg2+(aq) + 2NO3-(aq) → MgBr2(s) + 2AgBr(s) + 2NO3-(aq)