Ответ:
2 7/9
Пошаговое объяснение:
3 (х - 4 1/3) + 1 1/6 = - 3,5
3 * (х - 4 1/3) = - 3,5 - 1 1/6
3 * (х - 4 1/3) = - 35/10 - 1 1/6
3 * (х - 4 1/3) = - 7/2 - 1 1/6
3 * (х - 4 1/3) = - 3 1/2 - 1 1/6
3 * (х - 4 1/3) = - 3 3/6 - 1 1/6
3 * (х - 4 1/3) = - 4 4/6
3 * (х - 4 1/3) - 4 2/3
х - 4 1/3 = - 4 2/3 : 3
х - 4 1/3 = - 14/3 * 1/3
х - 4 1/3 = - 14/9
х = - 14/9 + 4 1/3
х = - 1 5/9 + 4 1/3
х = 4 1/3 - 1 5/9
х = 4 3/9 - 1 5/9
х = 3 12/9 - 1 5/9
х = 2 7/9