mimibear6398 mimibear6398

28-06-2018
Mathematics

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Duardo solved the following inequality, and his work is shown below: −5(x + 4) + 21 ≥ −3 + 4(x − 8) −5x − 20 + 21 ≥ −3 + 4x − 32 −5x + 1 ≥ 4x − 35 −9x ≥ −36 x ≥ 4 What mistake did Eduardo make in solving the inequality?

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SavMoore SavMoore

28-06-2018

The inequality sign wasn't flipped when dividing by a negative

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