(х - 3/8) * 8/35 + 2 2/7 = 2 2/5
( х - 3\8 ) * 8\35 + 2 2\7 = 2 2\5 ( х-3\8) * 8\35 = 12\5 - 16\7 = 4\35 х- 3\8 = 4\35 : 8\35 = 4\35 * 35\8 = 1\2 х = 1\2 + 3\8 = 11\8 = 1 3\8 = 1, 375