Question

When Kirchoff's laws are explained to an electrical circuit, the set of simultaneous equations below are obtained. (I will attach a picture in the comment).
What I need is from the method I have used clearly explain the method/technique used and to validate the solution/ method by using an alternative mathematical method.
#Special thanks to @Michele_Laino and @UsukiDoll for the help on my previous question.

Answer 1

ya, u are doing it right, just sub the currents back into the system of equations to see if it is working out

Answer 2

I only know the matrix and the Reduce Row Echelon (Gaussian Elimination) . As Dan mentioned, substitute the values you got from using row operations and see if x, y, and z work out for each equation that was given.

Answer 3

At the bottom i have put them back into the equation twice and the both work out fine but with a very small error.

Answer 4

Ok i have just spoken with the tutor and he said i dont have to have another method as i have proven by sub back into my question.

Answer 5

So for what i have put as my answer would someone be able to highlight the method and techniques used.i.e. break down into small groups

Answer 6

need help?

Answer 7

of course.

Answer 8

you know how yo said what you was doing with the last question in stages would you be able to do that for what i have already done. e.g. sub 2 into and it gives us.

Answer 9

I can do the Gauss elimination

Answer 10

ok I have attached what i have done above which has been marked correctly

Answer 11

please wait I write my answer as PDF file

Answer 12

thank you. i will pop to lunch as if not i will miss t today.
And to think these are the easy questions. I'm dreading next lesson as i will be getting the last assignment back for further maths and I think i did terrible.

Answer 13

please wait, I'm working on your file...

Answer 14

ok

Answer 15

here is my answer:

Answer 16

thank you

Answer 17

:)

Answer 18

tip: keep your answers for x y and z in fraction form. decimals are a pain.