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Ответ

Ответ дан
настёна200313
1)7+5=12(пар)-коньков
2)12+7=18(пар)- всего

Ответ

Ответ дан
DIMON1611
1 решение.
1)7+5=12(пар)-коньков всего купили.
2)7+12=19(пар)-лыж и коньков всего купили.
Ответ:19 пар.

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