Answer:
The answer is C I believe
Step-by-step explanation:
3sinx+1=sinx
2sinx+1=0
2sinx=-1
sinx=-1/2
x=sin^-1 (1/2) = 30 =

/6 (when finding the inverse, always take the positive value, ignore the negative sign)
x is therefore negative in 3rd and 4th quadrant
Therefore values of x are:
180+30=210 = 7

/6
360-3=330 = 11

/6
I need the sign between the (2/5)x and the 9
To do this i add them uo and easily subtract woth a hand held calculator