bjt q-point
In voltage divider basing, the basing resistors are replaced by thevenin equavilent circuit.
So equavilent resister Rb= R1R2/R1+R2
and equavilent voltage source VB = Vcc*R2/R1+R2
Therefore from base side you can write
VB=IbRb + Vbe+IeRe that is same as written but the values of Rb is now different and equivalent voltage VB is different is voltage divider biasing.
This is so because we require the value of stability factor S as small as possible. This we can achive by reducing Base voltage supply and hence through R1 and R2 only.
For voltage divider biasing, ICq equation is given by Vcc= IcRc + Vce + IeRe therefore
Ic= Vcc-Vce-IeRe/Rc.
If you only consider Vcc/Rc+Re then it will give you saturation current and Vce= Vcc is cuttoff voltage only.
Added after 1 minutes:
Please read 5th line that is same as written in Emitter biasing method but the----