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capucinejanier
@capucinejanier
January 2021
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C'est le numero 91, merciiii
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anylor
Bonsoir
n°91
a)
2(-5x+3) +7(3x-1) =0
-10x +6 +21x -7 =0
11x -1 =0
11x = 1
x = 1/11
b)
5(4x+3) +2(x+6) = 3(x+8)
20x +15 +2x +12 = 3x +24
20x +2x -3x = 24 -15 -12
19x = -3
x = -3/19
0 votes
Thanks 2
Arafat2514
Bonsoir ☺☻
Exercice 91
a)
2( -5x + 3 ) + 7(3x - 1 )
a)
-10x + 6 + 21x - 7
a)
11x - 1
b)
5(4x + 3 ) + 2(x + 6 ) = 3( x+8 )
b)
20x + 15 + 2x + 12 = 3x + 24
b)
22x + 27 = 3x +24 ou 24x + 51
1 votes
Thanks 1
Arafat2514
derien ☺☻
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capucinejanier
January 2021 | 0 Respostas
Le numero 30;) merci
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Numero 49 ;) mercii beaucouuuuuuup
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SVP C'EST URGENT , merci d'avance <3
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AIDEZ MOI SVP C'EST UN EXO DE GEOMETRIE
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AIDEZ MOI SVP URGENT
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n°91
a)
2(-5x+3) +7(3x-1) =0
-10x +6 +21x -7 =0
11x -1 =0
11x = 1
x = 1/11
b)
5(4x+3) +2(x+6) = 3(x+8)
20x +15 +2x +12 = 3x +24
20x +2x -3x = 24 -15 -12
19x = -3
x = -3/19
Exercice 91
a) 2( -5x + 3 ) + 7(3x - 1 )
a) -10x + 6 + 21x - 7
a) 11x - 1
b) 5(4x + 3 ) + 2(x + 6 ) = 3( x+8 )
b) 20x + 15 + 2x + 12 = 3x + 24
b) 22x + 27 = 3x +24 ou 24x + 51