how to isolate x sinx=7/22

I think you're correct!   I thought they wanted solution to  x sin x = 7/22     LOL

Here is a graph of  x sin x  (radians)   and 7/22 (blue).....where they intersect is a solution

EP......I think they want this  :

sin x  = 7/22

Use the arcsin

arcsin(7/22)  ≈  18.55°  = x

I still gave you 5 points....just in case......