Bonsoir
(x + 4)/(x + 2) - 3 = 5
(x + 4)/(x + 2) = 5 + 3
Avec x + 2 # 0
x # -2
(x + 4)/(x + 2) = 8
x + 4 = 8(x + 2)
x + 4 = 8x + 16
8x - x = 4 - 16
7x = -12
x = -12/7
1/(2x + 4) = 8
Avec 2x + 4 # 0
2x # -4
x # -4/2
1 = 8(2x + 4)
1 = 16x + 32
16x = 1 - 32
16x = -31
x = -31/16
