Sagot :
bonjour
5 ( x + 4) = 3 x + 13
5 x + 20 = 3 x + 13
5 x - 3 x = 13 - 20
2 x = - 7
x = - 7 /2
Salut
[tex]5 ( x + 4) = 3 x + 13[/tex]
[tex]5 x + 20 = 3 x + 13[/tex]
[tex]5 x - 3 x +20 = 13[/tex]
[tex]5 x - 3 x = 13 - 20[/tex]
[tex]2x = 13 - 20[/tex]
[tex]2 x = - 7[/tex]
[tex]x = - 7 /2[/tex]
Bonne vacance :)
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