Find the value of x of the following trigonometric equation with x is between -pi and pi

| sin 2x | = 1/2

My work

sin 2x = 1/2 (case 1)

2x= 30 , 150

x= 15 and 75

sin (-2x) = 1/2

There is no solution for this .

case 2

sin 2x = -1/2

no solution

sin (-2x) = -1/2

-2x = 30 , 150

x = -15 , -75

Am i correct ??