Unfortunately, the browser used for posting questions is hopelessly inadequate for mathematics: it strips away most symbols. All that we can see is "... (x0 y 23 z-2)32 over (x2 z 12) -6". From that it is not at all clear what the missing symbols (operators) might be. It makes little sense for me to try and guess - I may as well make up my own questions and answer them!
13+-12--5 = 6
6
13 - 12 - (-5) 1 - (-5) 1 + 5 6
19/12
To simplify the expression (-10x - 6 - 12), combine the constant terms (-6) and (-12). This results in (-10x - 18). Therefore, the simplified expression is (-10x - 18).
12 / 4 = 3
1 over 3
It is 5 over 12.
6
No, you can't simplify because it is in its simplest form.
Yes, you can. 12/1 simplified is 12.
Yes - it simplifies to 15/12