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20 Views · 01/25/21
Задание 21 по математике, прототип 324484
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03/23/20
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School education / Math
ОГЭ по математике.
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Задание 21, прототип 324484. Найдите значение выражения 61a-11b+50, если (2a-7b+5)/(7a-2b+5)=9.
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20 Views · 01/25/21
