решите уравнение 1 1/3-(-8/9-x)=2 5/6
1ц 1/3-(-8/9-x)=2ц 5/6
8/9+х=2ц 5/6-1ц 1/3
х=1 ц 3/6-8/9
х=11/18
1 1/3-(-8/9-x)=2 5/6
4/3 +8/9 +x = 17/6
x =17/6 - 4/3 -8/9 = (51-24-16) /18 =11/18