Réponse :
Explications étape par étape
Bonsoir
6 = 20x + 10
20x = 6 - 10
x = -4/20
x = -1/5
6 - 3x = 10x
10x + 3x = 6
13x = 6
x = 6/13
16 + 8x = 14x + 13
14x - 8x = 16 - 13
6x = 3
x = 3/6
x = 1/2
(4x + 8)/(3x) = 2
3x # 0
x # 0
4x + 8 = 2 * 3x
4x + 8 = 6x
6x - 4x = 8
2x = 8
x = 8/2
x = 4
(8x - 2)/(6 + 9x) = 0
2(4x - 1)/[3(2 + 3x)] = 0
2 + 3x # 0
3x # -2
x # -2/3
4x - 1 = 0
4x = 1
x = 1/4
3x = (4x - 5)/6
3x * 6 = 4x - 5
18x - 4x = -5
14x = -5
x = -5/14
