bonjour
3 x - 5 > 5 x - 2
3 x - 5 x > - 2 + 5
- 2 x > 3
x > - 3/2
] - 3/2 ; + ∞ [
7 x + 6 ≥ 4 x - 7
7 x - 4 x ≥ - 7 - 6
3 x ≥ - 13
x ≥ - 13/3
[ - 13/3 : + ∞ [
x + 3 < 7 - 2 x
x + 2 x < 7 - 3
3 x < 4
x < 4/3
] - ∞ ; 4 /3 [
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bonjour
3 x - 5 > 5 x - 2
3 x - 5 x > - 2 + 5
- 2 x > 3
x > - 3/2
] - 3/2 ; + ∞ [
7 x + 6 ≥ 4 x - 7
7 x - 4 x ≥ - 7 - 6
3 x ≥ - 13
x ≥ - 13/3
[ - 13/3 : + ∞ [
x + 3 < 7 - 2 x
x + 2 x < 7 - 3
3 x < 4
x < 4/3
] - ∞ ; 4 /3 [