Ответ:
5 14/19 - 2 6/19 + 9 11/19=12
6 5/17 - 3 9/17 + 7 10/17=9 6/17
x=9 5/8 + 7 3/8 - 3 5/8
x=13 3/8
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Ответ:
5 14/19 - 2 6/19 + 9 11/19=12
6 5/17 - 3 9/17 + 7 10/17=9 6/17
x=9 5/8 + 7 3/8 - 3 5/8
x=13 3/8