8 5/9 - (х - 3 7/9) = 1 8/9
х - 3 7/9 = 8 5/9 - 1 8/9
х - 3 7/9 = 7 14/9 - 1 8/9
х - 3 7/9 = 6 6/9
х = 6 6/9 + 3 7/9
х = 9 13/9
х = 10 целых 4/9
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Раскроем скобки:
8 5/9 - х + 3 7/9 = 1 8/9
11 12/9 - х = 1 8/9
х = 11 12/9 - 1 8/9
8 5/9 - (х - 3 7/9) = 1 8/9
х - 3 7/9 = 8 5/9 - 1 8/9
х - 3 7/9 = 7 14/9 - 1 8/9
х - 3 7/9 = 6 6/9
х = 6 6/9 + 3 7/9
х = 9 13/9
х = 10 целых 4/9
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Раскроем скобки:
8 5/9 - х + 3 7/9 = 1 8/9
11 12/9 - х = 1 8/9
х = 11 12/9 - 1 8/9
х = 10 целых 4/9