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lilsallix77
@lilsallix77
June 2023
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решите уравнение: log2(2x+7)=3-x
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marinaperekos057
По свойству логарифма:
2^3-^х=2^х-^7
3-х=х-7
10=2х
х=5:)
2 votes
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dnepr1
Решение НЕВЕРНОЕ. Откуда взялось 2^3-^х=2^х-^7??? Ведь 2^(3 - x) = 2x + 7!!!
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Answers & Comments
2^3-^х=2^х-^7
3-х=х-7
10=2х
х=5:)