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Résous chaque équation 10x +1=-7
2x=-2x+8
9x-2=6
4x-8=7x+4


Répondre :

1) 2x + 2x = 8
4x = 8
x = 8/4


2) 9x - 2 = 6
9x = 6+2
9x = 8
x = 8/9

3) 4x-8=7x+4
4x - 7x = 8+4
3x = 12
x = 12/3

Voila Bonne fin de journer


Bonjour;

2x=-2x+8

2x+2x = 8

4x = 8

x= 8/4

x =2

9x-2=6

9x= 6+2

9x = 8

x= 8/9

4x-8=7x+4

-8 -4 = 7x -4x

-12 = 3x

x = -12/3

x = -4