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Sagot :

Bonjour,

5x + 1 = 16

5x= 16-1

5x = 15

x= 15/5

x= 3

2x - 9 = 17

2x = 17+9

2x = 26

x= 26/2

x= 13

NEBULEUSEDUCRABE

Bonjour,

5x + 1 = 16

5x = 16 - 1

5x = 15

x = [tex]\frac{15}{5}[/tex]

x = 3

2x - 9 = 17

2x = 17 + 9

2x = 26

x = [tex]\frac{26}{2}[/tex]

x = 13

En espérant t'avoir aidé :)

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