Respuesta :

jaidaballard12

Answer:

-4n-9

Step-by-step explanation:

don't get mad if im wrong lol I tried

judgementalgrace

How to Solve:

So first start with the parentheses, which just rewrites the problem too -4+3n-5-7n. Next, you want to add like terms, so it becomes -9-4n! If you don't know like terms are anything variable that matches, for example, 7n & 3n! Along with -4 & -5!