bonjour
2 x + 8 x + 20 > x + 3
10 x - x > 3 - 20
9 x > - 17
x > - 17/9
] - 17.9 ; + ∞ [
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bonjour
2 x + 8 x + 20 > x + 3
10 x - x > 3 - 20
9 x > - 17
x > - 17/9
] - 17.9 ; + ∞ [