Related Post: X 2 X 6 1 X 2 X 6 10 X 2 X 6 1 4 X 2 X 6 12 X 2 X 6 1 3 X 2 )( X 6 )+ 16 X 2 )( X 6 )= 180 X 2 X 6 18 X 2 6 X 16 0 X 2 6 X 15