Réponses

2013-02-11T20:10:26+01:00
(2x)/3 -10>x (2x)/3-x>10 (2x-3x)/3>10 -x>10/3 2)x>60/15+3/15+5/15 x>68/15
2013-02-11T20:14:06+01:00
2 (x/3-5 ) >x = 2x/3 - 10 > x 2x/3 > x-10 2x/3 - x > -10 -x/3 > -10 donc x >10x3 ou x > 30