Решите (y+1)*18=36+12*(y+1)
18у+18=36+12у+12 18у+18=12у+48 18у-12у=48-18 6у=30 у=30:6 у=5
(y+1)*18=36+12*(y+1) 18y+18=36+12y+12 18y-12y=12+36-18 6y=30 y=30:6 y=5