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26-07-2020
Mathematics

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5 - 2x/ 7 is greater than or equal to 1

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Аноним Аноним

26-07-2020

5 - 2x >= 1 × 7

5 - 2x >= 7

-2x >= 7 - 5

-2x >= 2

x <= -1 sign changes when divided by negative number

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