27-1 10/43 -5 39/43+x-6 27/43=20 2/43
26 43/43-1 10/43-5 39/43-6 27/43-20 2/43=-х
-6+(-35)/43=-х
-6 35/43=-х
х=6 35/43
27-1 10/43 -5 39/43+х-6 27/43 = 20 2/43
1161/43-53/43-254/43+х-285/43 = 862/43
х = 862/43-1161/43+53/43+254/43+285/43
х = 293/43 = 6 35/43
1161/43-53/43-254/43+293/43-285/43 = 862/43
ответ: 6 35/43.
