Sagot :
Bonjour,
3x - 5/2 ≤ 1 - 4x
3x+4x ≤ 1+5/2
7x ≤ 2/2 +5/2
7x ≤ 7/2
x ≤ (7/2)/7
x≤ 7/14
x ≤ 1/2
3 - x/2 ≥ 4/5 + x/6
3 -4/5 ≥ x/6 +x/2
15/5 -4/5 ≥ x/6 + 3x/6
11/5 ≥ 4x/6
11/5 ≥ 2x/3
(11/5)3 ≥ 2x
33/5 ≥ 2x
(33/5)/2 ≥ x
33/10 ≥ x
x≤ 33/10
Bonjour,
3x - 5/2 ≤ 1 - 4x
3x+4x ≤ 1+5/2
7x ≤ 2/2 +5/2
7x ≤ 7/2
x ≤ (7/2)/7
x≤ 7/14
x ≤ 1/2
3 - x/2 ≥ 4/5 + x/6
3 -4/5 ≥ x/6 +x/2
15/5 -4/5 ≥ x/6 + 3x/6
11/5 ≥ 4x/6
11/5 ≥ 2x/3
(11/5)3 ≥ 2x
33/5 ≥ 2x
(33/5)/2 ≥ x
33/10 ≥ x
x≤ 33/10