You can put this solution on YOUR website! Solution: We distinct two cases:
1)If, 12-4x>=0 =>-4x >=-12 =>x <=3,we have 12-4x=2 => x=5/2, and
2)If, 12-4x<0 =>-4x<-12 => x>3, we have -(12-4x)=2 => x=7/2.
Answer: The possible values of x are:5/2 and 7/2.
Done.