Ответ:
2/5х=5/7+2
2/5х=5/7+14/7
2/5х=19/7
х=19/7*5/2=95/14
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Ответ:
2/5х=5/7+2
2/5х=5/7+14/7
2/5х=19/7
х=19/7*5/2=95/14