Respuesta :
Okay so you must do the (18-7) first so with that you will get
8*[5+11]/11
next you do the parenthesis yet again so [5+11]=16
8*16/7
and then you simplify
I got : 18.28.
8*[5+11]/11
next you do the parenthesis yet again so [5+11]=16
8*16/7
and then you simplify
I got : 18.28.