Answer not Matching (Solution of Linear Equation)

Question is attached below, my answear is not matching in both methods (Inverse matrix multiplication and backsalsh operator)

Answer 1

[Dana]

k\f, not f\k.

[Rajveersingh Pritpalsingh Panesar]

I mean, equation says K*d = f , mathematically it should be d = f/k ! or I am doing something wrong ?

[Dana]

You're doing something wrong. It's what I said before, k\f. Try it.

[Rajveersingh Pritpalsingh Panesar]

I know, I tried that. Answear also comes in. But my question to you is, doesn't it makes more sense when we say k*d = f, d = f/k (Mathematically) ? or Does MATAB function differently ?

[Dana]

No. f/k = f*inv(k). k\f= inv(k)*f. You want the latter. You originally had f\k, which is like inv(f)*k, except that doesn't even make sense at all.

[Rajveersingh Pritpalsingh Panesar]

Alright ! Thanks for the help though !