Réponses

2014-03-19T13:02:42+01:00
Bonjour
2x-3(x+1) ≤5+x
2x - 3x - 1 ≤ 5 +x
2x -3x -x ≤ 5 +1
-2x ≤ 6
x ≥ 6/2
x≥ 3

2(x+1) -3(2-x)≤ 4(1-x)
2x +2 - 6 +3x ≤ 4 - 4x
2x +3x +4x ≤ 4 -2 +6
9x ≤ 8
x≤ 8/9

x-1/2≤ 2x +1/3
6x - 3 ≤ 12x + 2
6x -12x ≤ 2 +3
-6x ≤ 5
x ≥ -  5/6