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Sagot :

JDCLG

Réponse:

[tex]a = \frac{4}{4} x - \frac{5}{4} x - \frac{15}{3} + \frac{4}{3} [/tex]

Cela donne

[tex] = - \frac{1}{4} x - \frac{11}{3} [/tex]

[tex]b = \frac{6}{4} - \frac{9}{4}x [/tex]

[tex] = \frac{3}{2} - \frac{9}{4} x[/tex]

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