Question

qual e a expressao 30- {8+[3+(8-5)-1]+6}=

Answer 1

30 - { 8+[ 3+ (8-5)-1]+6}
                        3
                       5
          { 8+5+6} = 19
30-19 = 11

Answer 2

30-{8+[3+(8-5)-1]+6}=
30-{8+[3+3-1]+6}=
30-{8+5+6}=
30-19=
11
espero ter ajudado!