Question

E essa como é?39+[5+(9-2x4)+7]

Answer 1

39 +[5 +(9 -2 x 4) +7 ] =
39 +[5 +(9   -8) +7 ] =
39 +[5 + 1 +7] =
39 +13 =
52

Answer 2

39+[5+(9-2x4)+7]=
39+[5+(9-8)+7]=
39+[5+1+7]=
39+[5+8]=
39+13=
52