I 6 - (3d-5)I < or equal to 14

I 6 - (3d -5)I < = 14

I 6 - 3d +5I < = 14
I 11 - 3dI < = 14
-14 <= 11 - 3d < = 14
-25 <= - 3d <= 3
25/3 >= d >= -3/3
25/3 >= d >= -1
-1 <= d <= 25/3