>Debra
>
>It's been a while since I did this, so check me on this
>
>If you want to pay someone whose gross g is $1000 enough so that
> after paying a tax rate r of .05 they still get $1000, you can do something like this
>
>g = 1000
>r = .05
>
>newrgross = g / ((g-(g *r))/g)
>
>Maybe some math types can simplify that, but I think it will work

Wouldn't be the same as

?  g / (1-r)