What is the error in the proof? (more in details)

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Answer 1 · 2018-07-24T01:35:21

Dividing $0$ by $0$ is indeterminable

The error in the proof results when you divide: $(x+y-z)$ by $(x+y-z)$ , it should work in any case but one, and here that it is the case:

$x+y-z=0$

And dividing $0$ by $0$ is indeterminable

$11(0)=10(0)$ $->$ this is true

Until you divide $0$ by $0$