N-3n=14-4n
N-3n+4n=14
2n=14
N=14÷2
N = 7 To check substitute 7-3(7)=14-4(7)
7-21=14-28
-14=-14
3b because b^2-4= 1/b. So 2/1/b= 2b b+2b = 3b
Answer:

Step-by-step explanation:

Make sure they have a common denominator. To do so, you must find a number the both have in come. Here, the number they have in common is 20.
What times 4 equals 20? 5. Whatever you do to the denominator you must do to the numerator.
×
= 
Now you have
= 
Then you can simplify
to
by dividing it by 
Answer:
4
Step-by-step explanation:
2+2=4