Respuesta :

CthulhuuX

Answer:

3

Step-by-step explanation:

12-4=5 and 1+3+1 also equals 5.

loneguy

Answer:

The answer is 6.

Step-by-step explanation:

[tex]12 - 4 =1+?+1\\\\\implies 8 = 2+?\\\\\implies ? = 8-2 =6[/tex]