Question

3n+16=7n
please SHOW ALL STEPS thank you

Answer 1

you do this by 
3n+16=7n
-3n      -3n
16=4n
divide each side by 4 
16/4=4n/4
4=n

Answer 2

3n+16=7n
-3n      -3n

16=4n
/4    /4

n = 4