kirchhoff laws circuit analysis

gbox

Joined Dec 29, 2015
42

I_1=I_2+I_3
If in both mesh I go counterclockwise I get in the one on the right:
24-7000I_1-4000I_2+18=0

and the one on the left:

4000I_2-2000I_3-20-18=0

WBahn

Joined Mar 31, 2012
25,927
How can we possibly tell if what you have is correct since you don't define what I_1, I_2, or I_3 are?

gbox

Joined Dec 29, 2015
42
Sorry I will update it

WBahn

Joined Mar 31, 2012
25,927
Good.

Be sure to remember that voltage and current both have polarity, so when you indicate your currents be sure to indicate what direction is positive.