Решите уравнение: x-x/3=1/2
Х - х/3 = 1/2 (3х-х)/3 = 1/2 2х/3 =1/2 2х*2 =3*1 4х=3 х= 3/4 ================ 3/4 - (3/4)/3 = 1/2 3/4 - 3/4 : 3/1 = 1/2 3/4 - 3/4 * 1/3 = 1/2 3/4 - 1/4 = 1/2 2/4 =1/2 1/2=1/2