Réponse:
52 a a = 8x
b = 6x + 4
c = 4x
d = 6x + 1
e = 12 - 8x
f = 3x
52 b. u = 2 ( à + 1)
v = 3b
w = d - 4
x = 2b + c + 1
53 a. a = 30x carré
b = 11x
c = 30x
d = 5x + 6
e = - x - 3
53 b. e = - 21x
f = 21x
g = - 21x carré
h = 4x
i = 7 - 3x
