Question

ME AJUDEM PLEAS
D) {[(18-3)+(7+5)-2]+5}-12=

E) 38-{20-[22-(5+3)+(7-4+1)]}=

Answer 1

Explicação passo-a-passo:

D) {[(18-3)+(7+5)-2]+5}-12

{[15+12-2]+5}-12

{[27-2]+5}-12

{25+5]-12

30-12

18

E) 38-{20-[22-(5+3)+(7-4+1)]}

38-{20-[22-8+(3+1)]}

38-{20-[22-8+4]}

38-{20-[14+4]}

38-{20-18}

38-2

36