Which mathematical sentence represents the solution for d in the equation 6e = ef + 3d?

Question

freethinker · Answer

which? 
where are the choices?

anonymous · Answer

i know the answer is d=6e-ef all over 3 but i dont know how to figure it out

freethinker · Answer

huh? you're just putting the equation into words, why are you trying to solve it?

anonymous · Answer

because if i saw another equation like this, i wouldn't know how to get the answer. my teacher gave me this answer without explaining it.

freethinker · Answer

but you're trying to solve it in a manner that is not being asked you to do.  
if you are looking for d in 6e = ef + 3d? then you do the following:

subtract ef on both sides of the equation (right-hand side and left-hand side)
6e - ef = 3d
then you divide both sides by 3
(6e - ef)/3 = d

anonymous · Answer

thank you

freethinker · Answer

you can simplify it further by factoring:
[ e (6 - f) ]/3 = d

anonymous · Answer

Thanks for your help! I may have a few more questions! :)