Thanks for the question.
Given, 7+sinx/n=7
The trick is to carefully observe sinx/n. In sinx/n, 'n' is common between numerator and denominator. So, they both will cancel each other. And we get, six in the equation as below:-
1+six=7
1+6=7
7 = 7
Therefore, L.H.S. = R.H.S.
Hope it solves your query|!
