Conditionally Deleting Lines On Multiple Worksheets

I need to delete line if 2 conditions are meet.

If col A is blank and col D or E is blank then I want the line deleted for lines 1no more than 100 The option of D or E has me stymied I end up with it not working right. This is what I had tried

Dim lastrow As Long, c As Long
lastrow = Cells(Rows.Count, 1).End(xlUp).Row
For c = 1 To lastrow
If Range("a" & c).Value " " and Range("d" & c). Value " " or Range("e" & c)Then ActiveSheet.HPageBreaks.delete
Next c

But doesn't work

I also need macro to run multiple worksheets which varies anywhere from 12 sheets to 50 sheets.