https://ibb.co/59qNmKx

I attach a link because for some reason the picture doesn't work..

R1 = 15 ohms

R2 = 22 ohms

R3 = 10 ohms

R4 = 15 ohms

R5 = 15 ohms

E1=E2=35 V

I've applied Kirchhoff's laws and got these equations:

15I2+10I6 = 35

22I5-15I2+15I3+15I3 = 0

-10I6-22I5 = 35

I1 = I2 + I3

I3 = I5+I4

I6 = I2+I5

I1 = I6+I4

from which I got that I3 = 2.33 A but I am stuck at that and cannot solve any other currents.. Are my equations right ? Do I understand correctly that I have to define junction points myself and that there will be 6 currents because junction points are not given ? Thanks for help...