(1.4-х)×5=10 1/3 памогите пж
7-5х= 31/3 -5х=31/3 - 7 -5х = (31-21) / 3 -5х = 10/3 х=10/3 : (-5) х = - 2/3
7-5х= 31/3 -5х=31/3 - 7 -5х = (31-21) / 3 -5х = 10/3 :(-5) Х= - 2/3