Question

 

у(3у-6/7)=0

Answer 1

y(3y-6/7)=0

y1=0

3y-6/7=0

3y=6/7

y2=2/7 

Answer 2

y=0 или   3y-6/7=0

y=0 или   3y=6/7

y=0 или    y= 6*1

                     ---

                     7*3

 y= 2/7 или у=0

Ответ:y=2/7 или у=0