Respuesta :

mbarkimeriam3

Answer:

2m+9=2m-9

Step-by-step explanation:

7m+11−5m−2=7m+11+−5m+−2

=7m+11+−5m+−2

=(7m+−5m)+(11+−2)

=2m+9
Combine like terms so first 7m-5m is 2m then 11-2 is 9 so you’re left with 2m+9=2m-9 now subtract 9 to the right side so you’re left with 2m=-18 because -9-9=-18 so now you divide 2m=-18 by 2 to get m alone and you get m=-9