Respuesta :

avachriss

Answer:

n = -15

Step-by-step explanation:

31 - 12n - 31 = 211 - 31

-12n = 180

Divide both sides by -12

n = -15

ta50346

Answer:

n = - 15

Step-by-step explanation:

31 - 12n = 211

-first get rid of 31 by subtracting

31 - 12n = 211

-31            -31

 =               =

 0            180

-12n=180

divide 12

-12n=180

-----   ------

-12     -12

=        =

0       -15

n=-15