how would I solve the problem, 10=2/7n+4 ?

Question

Please I need help!!!!!!!!!!!!!!!!!!!

Answer 1

10=(2)/(7n+4)
10(7n+4)=2
70n+40=2
70n=-38
n=-38/70
or is it
10=(2/7n)+4
6=2/7n
42n=2
n=2/42, 1/21