Ответ:
1.C
2.B
3.A
729÷(x-15)=81
x-15=729÷81=9
x=9+15
x=24
4. B
5. C
6. B
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Ответ:
1.C
2.B
3.A
729÷(x-15)=81
x-15=729÷81=9
x=9+15
x=24
4. B
5. C
6. B