Réponse :
Explications étape par étape
Bonjour
3x = 5
x = 5/3
6a + 2 = 3
6a = 3 - 2
a = 1/6
11t - 3 = 8
11t = 8 + 3
t = 11/11
t = 1
8x/(3x + 1) = 2
8x = 2(3x + 1)
8x = 6x + 2
8x - 6x = 2
2x = 2
x = 2/2
x = 1
17c + 22 = -8c - 3
17c + 8c = -22 - 3
25c = -25
c = -25/25
c = -1
x(x + 3) = 0
x = 0 ou x + 3 = 0
x = 0 ou x = -3
x^2 - 2 = 0
(x - V2)(x + V2) = 0
x - V2 = 0 ou x + V2 = 0
x = V2 ou x = -V2
(2n + 3)/(6n - 2) = (2n - 7)/(6n + 11)
Avec :
6n - 2 # 0 et 6n + 11 # 0
6n # 2 et 6n # -11
n # 2/6 et n # -11/6
n # 1/3 et n # -11/6
(2n + 3)(6n + 11) = (2n - 7)(6n - 2)
12n^2 + 22n + 18n + 33 = 12n^2 - 4n - 42n + 14
40n + 33 = -46n + 14
40n + 46n = 14 - 33
86n = -19
n = -19/86
