Respuesta :

The answer is c because you subtract 31-13= 18 and divide from 6
[tex]\textrm{Answer:}[/tex]
[tex]\boxed {3}[/tex]
[tex]\hrule [/tex]
[tex]6x+13 = \rightarrow 31-13= 18 \rightarrow 6x = 18 \rightarrow \frac{6x}{6} = \frac{18}{6} \rightarrow \boxed {3} [/tex]