Решите уравнение 1/9х+7/18х-11/27х=2 1/2
1/9х+7/18х-11/27х=2 1/2 х-7/3=-2 6/54х+21/54х-22/54х=5/2 х= -2+7/3 5/54х=5/2 х=-6/3+7/3 54х=2 х=1/3 х=2/54 х=1/27