#week 2 back_substitution excersise 2

#week 2 excersise 3
i am not able to get the code ok week 2 gaussian elimination excersie 3
can anyone help me?

What problem are you having specifically?

it is showing like this
Expected:
[ 0.21021142 0.34254018 -0.7696731 0.10474892 -1.59897709 -1.19849765],
but got:
[ 0.2 2.92195258 -0.7576335 -0.15328452 -0.51729882 -1.19849765].

Can you provide a screen capture image that shows this “Expected output”, and its larger context?

In the current version of the notebook, I was not able to find anywhere that the data you posted would be displayed.