Working out resistance for unknown BJT circuit
simulate this circuit &ndash; Schematic created using CircuitLab
There is also a solution when R2=0 as pointed out in comments.
Please understand , this is not a voltage multiplier but rather a feedback biased current sink, so that hFE and Rc make all the difference.
However this is not the normal application for this circuit which would be an AC amplifier with high open loop gain , DC biased at mid-scale then closed loop AC gain is reduced by Rcb.
here R1=R2 with Vc=-6.5V
(edit to add details and match RefDes)