1/6у-(0,5+8/9у)=1/9у-(1/3у)
1/6у-0,5+1/6у-8/9у=1/9у-1/3у
16/18у-3/18у-3/18у-2/18у+6/18у=0,5
14/18у=0,5
7/9у=0,25
ответ: 7/9у=0,25
1/6у-(0,5+8/9у)=1/9у-(1/3у)
1/6у-0,5+1/6у-8/9у=1/9у-1/3у
16/18у-3/18у-3/18у-2/18у+6/18у=0,5
14/18у=0,5
7/9у=0,25
ответ: 7/9у=0,25