2+2+2 = 6
3X3-3 = 6
4! /sqrt(4X4) = 6
5+5/5 = 6
6+6-6 = 6
7-7/7 = 6
8-sqrt(sqrt(8+8)) = 6
9-sqrt(sqrt(9X9)) = 6
2+2+2 = 6
3X3-3 = 6
4! /sqrt(4X4) = 6
5+5/5 = 6
6+6-6 = 6
7-7/7 = 6
8-sqrt(sqrt(8+8)) = 6
9-sqrt(sqrt(9X9)) = 6