Réponse :
Bonsoir,
2x-7 > 2-x
2x+x-7+7 > 2+7-x+x
3x > 9
x > 9/3
x > 3
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Réponse :
Bonsoir,
2x-7 > 2-x
2x+x-7+7 > 2+7-x+x
3x > 9
x > 9/3
x > 3