Ответ:
1/9+1/x = 1/6
1/x=1/6-1/9
1/x = (9-6)/54
1/x = 3/54
x=54/3
x=18
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Ответ:
1/9+1/x = 1/6
1/x=1/6-1/9
1/x = (9-6)/54
1/x = 3/54
x=54/3
x=18