15 : 3 + 4 x (2 + 6) =
(2 + 3) x 4 + 8 =
2 + 3 x 4 + 8 =
15 : 3 + 4 x 2 + 6 =
2 + 3 x (4 + 8) =
38
39
19
22
28
