Answer :
6n=30+3(n-4)
multiply 3 by n and 3 by -4
6n= 30+ (3n-(3*4))
6n=30+3n-12
subtract 3n from both sides.
6n=30+3n-12
-3n -3n
3n= 30-12
3n= 18
and then you divide by 3
n= 6
multiply 3 by n and 3 by -4
6n= 30+ (3n-(3*4))
6n=30+3n-12
subtract 3n from both sides.
6n=30+3n-12
-3n -3n
3n= 30-12
3n= 18
and then you divide by 3
n= 6