Question

{45 + [(24 + 3) + (2 X 5) - (108 + 12)]} - 4​

Answer 1

Explicación paso a paso:

={45+[(27)+(10)-(120)]}-4

={45+[27+10-120]}-4

={45+[-83]}-4

={45-83}-4

={-38}-4

=-38-4

=-42