Answer:

c

Step-by-step explanation:

A cheaty way is to choose from the choices, substitute it one by one till you get the right answer

The RIGHT WAY is to transpose the 6 to 12

A fast way to do it is to just place it on the opposite side and change the sign:

If positive, it becomes negative. If negative it becomes positive when you transpose it.

x=12-6

x=6

Variables are the letters

Place the variables on one side and the numbers on the other side

Variables=numbers

leter C.6 po

ganyompo yan

6+6=12