I don't know where to start. Here is the question

Using a calculator, determine the solutions for each equation, to two decimal places, on the interval 0< x < 360 (it's equal to or greater than and equal to or less than I don't know how to put the line underneath the signs sorry)

This is the equation 3Sin x = Sin x +1

I tried to put everything on one side hoping I could factor and got 3Sin x -Sin x - 1 = 0

after using the quadratic formula I got the wrong answers

The answers should be X = 0.52 or 2.62 I don't know how they got that.