Okay, lets say i have this:
numB = 5
for(i=1; i<numB; i++){
box.duplicateMovieClip("box" add i, i+100);
}
how would i set the _x of each box, to be 100 greater then the previous box _x
with as?
so they would appear in a line like # # # # # ?
system
2
numB = 5
for(i=1; i<numB; i++){
box.duplicateMovieClip("box"+i, i+100);
_parent["box"+i]._x = (i*100)+box1._x
}
or
numB = 5
for(i=1; i<numB; i++){
box.duplicateMovieClip("box"+i, i+100);
_parent["box"+i]._x = _parent["box"+(i-1)]._x +100
}
they should work… if not, try changing _parent to this or other pathing locations but _parent should work 
Prophet.
system
3
or maybe
numB = 5;
for (i=1; i<numB; i++) {
box.duplicateMovieClip(“box”+i, i+100);
this[“box”+i]._x = 100*i+box._x;
}
Depends where the code is written. This is on the timeline containing box
system
5
Or Simply
for(i=1; i<10; i++){
box.duplicateMovieClip(“box” add i, i);
_root[“box”+i]._x = 100*i; //100 is the width of Box instance
}