Réponse :
[tex]bonsoir\\\\5 x = 3 x + 3 \\5 x - 3 x = 3 \\2 x = 3\\x = 3/2\\\\\\8 x = 12 x + 4\\8 x - 12 x = 4 \\- 4 x = 4 \\x = - 1 \\\\\\4 - 7 y = 10 y \\\\-7 y - 10 y = - 4 - 17 y = - 4\\y = 4/17\\\\\\7 x + 1 = - 4 - x\\7 x + x = - 4 - 1 \\8 x = - 5 \\x = - 5/8\\\\[/tex]
continue , tu as la méthode
