3.Решите уравнение:
а)5,23+х=-7,24
б)у-2 5/12=-3 7/15

a) 5.23+x = -7.24x = -7.24-5.23x = -12.47б)y-2 5/12= - 3 7/15y - 29/12 = -52/15y = -52/15 + 29/12y = -208+145/60y = -63/60 = -1 3/60 = -1 1/20