Réponse:
a) 7x+3>2x-5
5x+3>-5 -2x
5x>-8 -3
x>-8/5 /5
x appartient à ]-8/5; +infini[
b) 8-4x >= 6x-3
8 >= 10x-3 +4x
11 >= 10x +3
11/10 >= x /10
x appartient à ]-infini; 11/10]
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Réponse:
a) 7x+3>2x-5
5x+3>-5 -2x
5x>-8 -3
x>-8/5 /5
x appartient à ]-8/5; +infini[
b) 8-4x >= 6x-3
8 >= 10x-3 +4x
11 >= 10x +3
11/10 >= x /10
x appartient à ]-infini; 11/10]