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Sagot :

MPOWER

Réponse :

Bonjour,

–4x + 5 < x + 100

⇔ –4x – x < 100 – 5

⇔ –5x < 95

x > –19

2x – 1 ≥ 0

⇔ 2x ≥ 1

⇔ x ≥ 1/2

S = [1/2 ; +∞ [

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