Answer:
n = -7
Step-by-step explanation:
-3n - 5 + 4n + 19 = 7
First combine all like terms
(-3n + 4n) + ( -5 + 19) = 7
n + 14 = 7
Subtract 14 from both sides
n = -7
Plug in to double check the answer
(-7) + 14 = 7
7 = 7
or
-3(-7) - 5 + 4(-7) + 19 = 7
21 - 5 - 28 + 19 = 7
7 = 7
