Question

{2.[7+18+(3+12)]}-[7.3-18:2+1]

Answer 1

Resposta:

67

Explicação passo-a-passo:

{2.[7+18+(15)]}-[21-18:2+1]

{2.[7+18+15]}-[21-9+1]

{2.[25+15]}-[12+1]

{2.[40]}-[13]

{2.40}-13

{80}-13

80-13

67