You can put this solution on YOUR website! Not sure whether you mean or
Let's go with the first one...
We wish to undo what is being done to x...since it is being multiplied by 1/2, we divide by 1/2 to undo it...we then get
Dividing by 1/2 is the same as multiplying by two ("How many half dollars are in three dollars?"), so we get
x = 6