Which one of the equations is incorrect for the circuit below?

Question

anonymous · Answer

attachment

anonymous · Answer

I1 + I2 - I3 = 0
	8I1 - 2 I2 = 7
	2I2 + 4I3 = -12
	I3 - I1 - I2 = 0
	None are correct.

mos1635 · Answer

I1 + I2 - I3 = 0 correct

anonymous · Answer

@shivam_bhalla  @experimentx

experimentx · Answer

kirchoff law.

anonymous · Answer

@experimentx what is the finall answer like Mos or not ??

experimentx · Answer

yeah of course !!

anonymous · Answer

They both are correct.

8I1 - 2 I2 = 7
2I2 + 4I3 = -12

anonymous · Answer

but he want the incorrect not the correct 
@mos1635

anonymous · Answer

guys please which one is the incorrect not the correct ?!

anonymous · Answer

They both are correct.

8I1 - 2 I2 = 7
2I2 + 4I3 = -12

anonymous · Answer

Also, this is correct,
I1 + I2 - I3 = 0

anonymous · Answer

I3 - I1 - I2 = 0 who agree that these is incorrect ?!
@shivam_bhalla @experimentx

mos1635 · Answer

i mast get my eyes examed!!!!!!! SORRY

anonymous · Answer

np but which one is incorrect now ??????

experimentx · Answer

LOL ... sorry again, i didn't read the question well.

vincent-lyon.fr · Answer

All four relations are correct. Have you misprinted one of them?

anonymous · Answer

ok please tell me all which one i should choose :P

anonymous · Answer

all 4 are correct.  Have a look at your choices again.  I am sure you must have typed one of the choices wrong

anonymous · Answer

these the choices again i take copy and paste :P :P
	I1 + I2 - I3 = 0
	8I1 - 2 I2 = 7
	2I2 + 4I3 = -12
	I3 - I1 - I2 = 0
	None are correct.

anonymous · Answer

Probably, this is the incorrect choice
-->None are correct.

experimentx · Answer

I think there something wrong with direction 
8I1 - 2 I2 = 7
2I2 + 4I3 = -12

every one please check once.

anonymous · Answer

@experimentX , I have checked the direction and all the 4 equations are right

anonymous · Answer

Probably, this is the incorrect choice
-->None are correct.

anonymous · Answer

2I2 + 4I3 = -12  i think these is the icorrect who agree with me ?!

anonymous · Answer

I dont agree @blacktigger

vincent-lyon.fr · Answer

I1 + I2 - I3 = 0 and I3 - I1 - I2 = 0 are the same. Did you get the signs right?
2I2 + 4I3 = -12 is correct.

anonymous · Answer

ok if u were in my positon what u will choose in these stupid qustion 
i want one answer from u all only one please :\ :\

anonymous · Answer

I would say the incorrect option is -->None are correct.

experimentx · Answer

|dw:1335284538779:dw|

How do you interpret these circuits??