Réponses

2013-06-06T09:35:12+02:00

Bonjour

2x-3 < 5x+7

-7- 3 < 5x - 2x

-10 < 3x

-10/3 < x 

 

2013-06-06T11:02:31+02:00

2x-3 < 5x+7

 

-7- 3 < 5x - 2x

 

-10 < 3x

 

-10/3 < x