Hi guys!

After beating my head into the wall for the past hour, I though I'd
come and ask the experts about the best way to solve my problem. I
have a simple worksheet that looks like so:

15 15
15 30
15 45
15 60
15 75

The first column contains '15' and the second column does the formula
=b1+a2, =b2+a3, and so on. The only row that isn't like this is the
first row in which the formula is just =a1.

My question is, how do I make it so that if I delete, say, the 3rd row,
that my formulas will adjust automatically? I've attempted to play
around with absolute references, but I still had problems when I
deleted rows. Granted this is an extremely simple example, but
hopefully, I'll be able to extend the solution to my very complex
spreadsheet.

Thanks,

Rich