Respuesta :

zdomi

Answer:

-7n - .9

Step-by-step explanation:

By distributing the - to the parentheses, you must add a - sign to each number in the parentheses. This makes the positives turn negative.

(-7n-0.9)
-7n-0.9=0
-7n=0.9
-n=7.78
n=7.78