Sure I can. That's easy.But what you could start with is an ordinary inverting op amp stage, with just two resistors. See if you can develop the formula we all know and love:

Vout=-Vin*R2/R1

I'd appreciate thatI could probably show you a method that you could pick up in a few minutes.

I usually enjoy doing some maths.

Just a few guidelines, can be very helpful to me.