2 11/12-(х-3/8) = 1 1/4
х-3/8 = 2 11/12-1 1/4
х-3/8 = 1 8/12 = 1 2/3
х = 1 2/3 + 3/8
х = 1 25/24 = 2 1/24
2 11/12-(х-3/8) = 1 1/4
х-3/8 = 2 11/12-1 1/4
х-3/8 = 1 8/12 = 1 2/3
х = 1 2/3 + 3/8
х = 1 25/24 = 2 1/24