Welcome to one of the easiest algebraic equations in the world!... or is it? MUAHAHAHAHA!

Can you solve this pesky little problem while also giving damning evidence that the other 2 can not possibly work?

**YOU MUST CHOOSE ONE AND ONLY ONE!**
Calculations:

6÷2(1+2) =

6÷2(3) =

3*3 =

**9**
6÷2(1+2) =

6÷2(3) =

6÷6 =

**1**
6÷2(1+2) =

6÷2+4 =

3+4 =

**7**
ADDED: Those calculations are simply thought processes for each possible answer. I am aware that there may or may not be something missing that could help clarify, but I am leaving it up to you to figure it out.