1цел 5/6-(у+2/3)=1цел 1/2) СРОЧНО

1)5/6 - у- 2/3 =1/2
2)1/6-у=1/2
3)-у=1/2-1/6
4)-у=1/3
5)y=-1/3

[tex]1\frac{5}{6}-(y+\frac{2}{3})=1\frac{1}{2}[/tex]
[tex]1\frac{5}{6}-y-\frac{4}{6}=1\frac{1}{2}[/tex]
[tex]1\frac{1}{6}-y=1\frac{3}{6}[/tex]
[tex]y=1\frac{1}{6}-1\frac{3}{6}[/tex]
[tex]y=\frac{7}{6}-\frac{9}{6}[/tex]
[tex]y=-\frac{2}{6}=-\frac{1}{3}[/tex]