(х-20.9)+12.27=23.2
х - 20,9 = 23, 2 - 12,27
х - 20, 9 = 10,93
х = 10,93 + 20,9
х = 31, 83
х-20.9=23.2-12.27
х-20.9=10.93
х=10.93+20.9
х=31.83
(х-20.9)+12.27=23.2
х - 20,9 = 23, 2 - 12,27
х - 20, 9 = 10,93
х = 10,93 + 20,9
х = 31, 83
(х-20.9)+12.27=23.2
х-20.9=23.2-12.27
х-20.9=10.93
х=10.93+20.9
х=31.83