Yes, it's an accent thing. It's weird, but some parts of Brazil pronouce like the first one (je) istead of the second one (de). Yet the standard one (as a spanish teacher once told me, standard is the one that news anchor speak :P ) is the (de) one.
What about the ending "-dem" as in "decidem / entendem"? Is the d pronounced as "dj" or as normal "d"? I think the same is true for "-tem" as in "partem" with pronunciation "tch".
I put my answer as...Elas decidem and it was incorrect.
What is the difference between Eles decidem and Elas decidem. Surely both mean 'they decide' ??