Respuesta :

That would be evaluated to 31+1 because you have to keep change flip. Keep the 31, change the symbol to addition, then flip the negative 1 to a positive number.

[tex]|31|-|-1|[/tex]

[tex]31-|-1|[/tex]

[tex]31-1[/tex]

[tex]=30[/tex]

"30 is correct answer."

Hope this helps!

Thanks!

-Charlie