Semibluff raising all-in in NL

[kitaristi0]

I think this is the right forum for this.

Is this correct?

If P = the current potsize, Eq = my equity if my shove is called, pf = % that villain folds, x = the amount of money left on the flop, then

EV = pf*P + (1 - pf)[(Eq * (P + 2x)) - x]

I think it's a bit inaccurate, maybe (if FB is the amount bet on the flop and P is the potsize before any action on the flop and x is the money left after a flop bet)

EV = pf*(P+FB) + (1-pf)[(Eq * (P+2FB+2x)) - (x+FB)]


Either that or I'm way off and wasted an hour last night fiddling around with this in Maple.