Answer:
c= -y-16/3y; true for all
Explanation:
I don't know if this is correct or not, but give it a shot.
subtract y from both sides: 3cy+2+y-y=14-y
simplify: 3cy+2=-14-y
subtract 2 from both sides: 3cy+2-2=14-y-2
simplify: 3cy=-y+16
divide both sides by 3y: 3cy/3y= -y/3y-16/3y; true for all
simplify: c--y-16/3y; true for all