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Sagot :

Bonjour,

soit x > -5

3 * (-5) = -15

donc a= 3x > -15

3 * (-5) + 4 = -15 + 4 = -11

donc b = 3x + 4 > -11

3 * (-5) - 6 = -15 - 5 = -20

donc c = 3x - 5 > -20

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