Respuesta :

N = 20
BODMAS
4 x 5 = 20
20 + 4 = 24
24 -2 = 22
22 -2 = 20

Answer:

[tex]4 \: \times 5 = 20 \\ 20 + 4= 24 \\ 24 - 22 \\ 22 - 2 = 20[/tex]

20 is the right answer