Sagot :
(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
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