Question

30- {4 [ + [ ( - 2 )+)-13

Answer 1

30-{4+[-2]}-13
30-{4-2}-13
30-2-13
15

Answer 2

Olá,

Vamos lá,

=30 - {4 [ + [ ( - 2 )+)-13
= 30 - { 4 -2 - 13}
= 30 - {-11}
= 30 + 11
= 41