Question

52-{12+[15-(8-4]} me ajudar ​

Answer 1

SEPARANDO POR PARTES

8-4= 4

15-(-4) = 15+4= 19

12+19= 31

52-31 = 21

Answer 2

52-{12+[15-(8-4]}

52 - {12 + [15 - 4] }

52 - {12 + 11 }

52 - 23

29