Answer:
-x+5
Step-by-step explanation:
5-5x+4x
= 5+(-5x)+4x
combine like terms:
5+(-5x)+4x
(-5x+4x)+(5)
= -x+5
Answer:
The answer is option B, x = 4.2
Integers are whole numbers, both positive and negative. Therefore, all of the positive and negative whole numbers between these two numbers in a set will be your answer:

Hope this helped, and have a nice day!
Just combine like terms: (f+g)(x)=x^2+6x+30