Question

Por favor me ajudem nessa expressão numérica
6.4 - {4+9-[8-(3.14-58)]}-20

Answer 1

24-{4+9-[8-(42-58)]}

24-{4+9-[8-(-16)]}

24-{4+9-[8+16]}

24-{4+9-8-16}

24-{-11}

24+11

35

Answer 2

24-{4+9-[8-(42-58)]}-20

24-{4+9-[8-(-16)]}-20

24-{4+9-[8+16]}-20

24-{4+9-24}-20

24-{-11}-20

24+11-20

35-20

15