Answer:

Step-by-step explanation:
To avoid confusion, distribute that negative amongst all terms in the second set of parentheses:

** The above answer is written in reverse, which is the exact same result.
I am joyous to assist you anytime.
Answer:
the number is 1
Step-by-step explanation:
4(7n-n)=24
28n-4n=24
24n=24
n=1
i'm not sure how to solve the first one but the second is 150
Answer:
2 option I think, if I'm wrong so sorry ;(
Step-by-step explanation: