Пошаговое объяснение:
1 2/3 + (х - 4 7/9) = 4 1/3,
х - 4 7/9 = 4 1/3 - 1 2/3,
х - 4 7/9 = 13/3 - 5/3,
х - 4 7/9 = 8/3,
х = 8/3 + 4 7/9,
х = 24/9 + 43/9,
х = 67/9,
х = 7 4/9
Пошаговое объяснение:
1 2/3 + (х - 4 7/9) = 4 1/3,
х - 4 7/9 = 4 1/3 - 1 2/3,
х - 4 7/9 = 13/3 - 5/3,
х - 4 7/9 = 8/3,
х = 8/3 + 4 7/9,
х = 24/9 + 43/9,
х = 67/9,
х = 7 4/9