aidez moi svp ex 14 et 17 ​

Réponse:

[tex]a)2x + 5 = 6 \\ 2x = 6 - 5 \\ 2x = 1 \\ x = \frac{1}{2} [/tex]

[tex]b)6 = 5a - 4 \\ - 5a = - 4 - 6 \\ - 5a = - 10 \\ a = 2[/tex]

[tex]c)4c - 1 = 7 \\ 4c = 7 + 1 \\ 4c = 8 \\ c = 2[/tex]

[tex]d)11 = - 8y - 5 \\ 8y = - 5 - 11 \\ 8y = - 16 \\ y = - 2[/tex]

voilà l'exercice 14