Question

9+[4+2. (6_4)+(2+5)]_8=

Answer 1

9+[4+2.(2)+7]-8
9+(4+4+7)-8
9+(15)-8
16

Answer 2

olá
9+[4+2.(2)+7]-8=
   9+(4+4+7)-8=
      9+(15)-8=
         = 16

espero ter ajudado<3