29+14(9-y)=19-2y решите пожалуйста!
29+126-14y = 19-2y 29+126-19 = 14y-2y 12y = 136 y = 136/12 y = 11 4/12 y = 11 1/3
29+14(9-y) =19-2y 29+126-14y =19-2y 155-14y =19-2y -14y+2y = -155+19 -12y = -136 y = -136:12 y =11,3