For example we have this circuit:
Originally we assumed β to be very high and we assume VBE = 0.7. So for this, we have IB = 0 and therefore V1 = -0.7V and V2 = 3.4V.
Now that we have β at 100, IV1 is still 2*10-3 but now IV2 = αIV1 where α = 0.99 so we get IV2 = 1.98*10-3.
We also have now instead of IB = 0, IB = IV2/β = 1.98*10-5 and therefore VB = IB *47k = 0.9306
So then, V1 = VB - VBE = 0.2306V. I don't have any other of what the answers should be but I do know that V1 should be -1.63V and I'm not entirely sure where I've gone wrong.