Using Norton's theorem and superposition to find current

[amsi]

Okay, the task is really not that hard but I am getting strange numbers.


1. Homework Statement

Find the current going through the resistor of 18 ohms.
Circuit is shown in the first picture.

Homework Equations

The Attempt at a Solution

I used norton theorem and superposition to find current In

 

[amsi]

Sorry for reposting it twice,missclick.

 

[NascentOxygen]

Hi amsi.

In your second schematic you seem to be determining R_N after deactivating all sources. You show three 10Ω resistors, but there should be only two; the third one shouldn't show because it is in series with a current source.

 

[amsi]

In your second schematic you seem to be determining R_N after deactivating all sources. You show three 10Ω resistors, but there should be only two; the third one shouldn't show because it is in series with a current source.

Oh you are right I didn't even notice it ,thank you.