Réponse :
bonjour
- 3x = 4
x = - 4/3
x + 1,5 = 0
x = - 1.5
3(4 + x) = 0
12 + 3 x = 0
3 x = - 12
x = - 4
3x + 1 = 2(x-3)
3 x + 1 = 2 x - 6
3 x - 2 x = - 6 - 1
x = - 7
3+ 4(x - 2) - 2x(4 + 2) = 0
3 + 4 x - 8 - 8 x - 4x = 0
- 8 x = - 3 + 8
- 8 x = 5
x = - 5 /8
7(x + 1) + 3(3 - x) =5(1 - x) - 3(2x + 1)
7 x + 7 + 9 - 3 x = 5 - 5 x - 6 x - 3
4 x + 11 x = 5 - 3 - 7 - 9
15 x = - 14
x = - 14/15
fais la suite, c'est pareil
Explications étape par étape :
