АР
Алексей Рудик
Решение:
1,5х +3 1/3 = 2,5
1,5х = 2,5- 3 1/3
1,5х = 2 1/2- 3 1/3
1,5х = 2 3/6- 3 2/6
1,5х = - (3 2/6 - 2 3/6)
1,5х = - (2 8/6 - 2 3/6)
1,5х = - 5/6
х = - 5/6 : 1,5
х = - 5/6 : 3/2
х = - 5/6 * 2/3
х= - 10/18 = - 5/9