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Lokman10
@Lokman10
April 2019
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Désolé sa supprimée ! Comment résoudre cette équation car c'est en fraction et j'arrive pas
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nathalienouts
X/3+9/4 = 5x/6
4x/3*4 + 9*3/4*3 = 2*5x/6*2 * = fois
4x/12+27/12 = 10x/12 on simplifie par 1/12
4x+27 = 10x
10x-4x = 27
6x = 27
x = 27/6
x = 9/2
0 votes
Thanks 2
maamrahamza39
X/3 + 9/4 = 5X/6 + 15/2 ⇔ (4X +27)/12 = (5X + 45)/6
D'ou: 6(4X + 27) = 12(5X + 45)
24X + 162 = 60X + 540 ⇔ 24X - 60X = 540 - 162
alors: - 36X = 378 ⇒
X = -21/2
1 votes
Thanks 1
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Lista de comentários
4x/3*4 + 9*3/4*3 = 2*5x/6*2 * = fois
4x/12+27/12 = 10x/12 on simplifie par 1/12
4x+27 = 10x
10x-4x = 27
6x = 27
x = 27/6
x = 9/2
D'ou: 6(4X + 27) = 12(5X + 45)
24X + 162 = 60X + 540 ⇔ 24X - 60X = 540 - 162
alors: - 36X = 378 ⇒ X = -21/2