can anyone tell me how to draw these pictures

[Mostafa Magdy]

i dunno how to draw the lower two circuits ...can anyone draw them for me ?

[skeatz]

Last circuit will look something like the picture attached. Circuit before it can be drawn in a similar manner. Just think through it a bit. It's not too difficult.

rgds,
skeatz

[Mostafa Magdy]

can anyone tell me how to solve the two lower circuits please

[skeatz]

Convert resistors R4, R6 & R7 from delta-to-star. Let's call them Ra (top arm), Rb & Rc.
Calculate resistance (R5+Ra+Rb//Rc).
Now compute the equivalent resistance as seen from left of R2, looking to the right Req = (R2//(R5+Ra+Rb//Rc)//R3).
Current divider formed by R1 & Req.
You should be able to work out the value of current from here.

[Mostafa Magdy]

the one above it is difficult because i dunno if the "X-shape" can be taken as a node or ithey are different wires!!

[skeatz]

If your drawing for cct 3 is correct (with a node/junction @ the center of the X), then it will be like mostafa_cct3-1. This is equivalent to the next cct that I have drawn, i.e. mostafa_cct3-2.

It's your drawing, only you can tell if it is drawn correctly (or ask your lecturer?). Calculating the current is simple in this case - just a matter of series/parallel resistors.