Find angle S

This is a pentagon....the sum of the interior angles=  540

So

5x +2  + 10x - 3  + 8x - 19 + 7x -11 + 13x - 31  = 540    simplify

43x  - 62  = 540

43x = 540 + 62

43x =  602

x=  602/43  = 14

Angle S  = 13 (14)  -  31  =  151°