x-8/19-4/57=2/3
x-28/57=2/3
x=2/3+28/57
x=22/19
x=1 3/19
(x-8/19)-4/57=2/3
x=22/19 или x=1 целая 3/19
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x-8/19-4/57=2/3
x-28/57=2/3
x=2/3+28/57
x=22/19
x=1 3/19
(x-8/19)-4/57=2/3
x-28/57=2/3
x=2/3+28/57
x=22/19 или x=1 целая 3/19