Q13/031) solve this greatest integer equation? [x+4]=3[x]-8

[x+4] = 3 [x] - 8
because 4 is integer so [x+4] = [x] + 4
so
[x] + 4 = 3[x] - 8

or 2[x] = 12
or [x] = 6

or 6 <= x < 7 or in set notation [6, 7 }