Решите уравнения 1/7x +3/14- x=19 1/6x + 5/12x=8 целых 4/10
1/7x +3/14- x=19 -6/7x+3/14=19 -6/7x=19-3/14 -6/7x=18 11/14 x=18 11/14*(-7/6) x=263/14*(-7/6) x=-263/12 x=-21 11/12 1/6x + 5/12x=8 целых 4/10 2/12x+5/12x=8 2/5 7/12x=8 2/5 x=42/5*12/7 x=72/5 x=14 2/5