(х-11/30) - 16/45= 2/9 ре
(х - 11/30) - 16/45 = 2/9
х - 11/30 = 2/9 + 16/45
х - 11/30 = 10/45 + 16/45
х - 11/30 = 26/45
х = 26/45 + 11/30
х = 52/90 + 33/90
х = 85/90
х = 17/18
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(х - 11/30) - 16/45 = 2/9
х - 11/30 = 2/9 + 16/45
х - 11/30 = 10/45 + 16/45
х - 11/30 = 26/45
х = 26/45 + 11/30
х = 52/90 + 33/90
х = 85/90
х = 17/18