Question

{[(-50-10)+11+19]+20}+10

Answer 1

bom dia
{[(-50-10)+11+19]+20}+10
\/
{[60+11+19]+20}+10
\/
{[71+19]+20}+10
\/
{90+20}+10
\/
110+10
\/
20
espero ter ajudado
bons estudos!!!!!!!