2 1/3+(x-1/6)=- 4 5/9

2 1/3 + x - 1/6 = -4 5/9
2 2/6 -1/6 + x = - 4 5/9
2 1/6 + x = -4 5/9
x = -4 5/9 - 2 1/6
x = - 4 10/18 - 2 3/18
x = -6 13/18