Ответы 2
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2A=140-B;140-B+B=140;140=140;или B=140-2A;2A-2A+140=140;140=140
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Автор:
cha chavyls - 6 лет назад
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2а= 140-ва = (140-в)/ 2в нужно найти подставив в уравнение а
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Автор:
sadielxdw - 6 лет назад
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