It’s four because you subtract 2 minus negative 2
Answer:

Step-by-step explanation:
The correct steps to solve the equation are:


Because 
So, solving we get:

Sum 3 on every side:

Dividing by 2 into both sides:

So, the answer is 
i think the answer is A
Step-by-step explanation:
i just think it's a
Answer:
1 option is correct
Step-by-step explanation:
Angle AOB and DOC is vertically opposite angle