Réponse:
[tex]a = \frac{b + a}{ab} [/tex]
[tex]b = \frac{3b +10a}{2ab} [/tex]
[tex]c = \frac{3b - 2}{2ab} [/tex]
[tex]d = \frac{11}{15a} [/tex]
[tex]e = \frac{a {}^{2} + a + 1}{ {a}^{3} } [/tex]
[tex]f = \frac{2ab + 3b {}^{2} + 4 {a}^{2} }{ {a}^{2} {b}^{2} } [/tex]