Respuesta :

SmartKid1st

Answer:

m= -2n-13

Step-by-step explanation:

1. Subract 1 from both sides

m=-2(n+6)-1

2. Mulitply n+6 by -2

m=-2n-12-1

3. m=-2n-13
m+1= -2(n+6)
m= -2n-12-1
m=-2n-13