Б) 5(1,2-2y)=7,3-4(3y+1)
6-10у= 7.3-12у-4
-10у+12у=7.3-6-4
2у=-2.7
6-10y=7,3-12y-4; -10y+12y=3,3-6; 2y= -2,7 ; y=(-2,7):2= -1,35. Ответ: y= -1,35.