Пошаговое объяснение:
1 7/18 x - 3 3/8 = 1 5/12,
1 7/18 х = 1 5/12 + 3 3/8,
1 7/18 х = 1 10/24 + 3 9/24,
1 7/18 х = 4 19/24,
х = 4 19/24 : 1 7/18,
х = 115/24 : 25/18,
х = 115/24 * 18/25,
х = 207/60,
х = 3 9/20
