Répondre :
Bonjour,
- 3x +35 = 7x - 15
35+15 = 7x+3x
50 = 10x
x= 50/10 = 5
Réponse:
2x - 5 = 5
2x = 5 + 5
2x = 10
x = 10/2
x = 5
2x + 4 = x + 4
2x - x = 4 - 4
x = 0
Bonjour,
- 3x +35 = 7x - 15
35+15 = 7x+3x
50 = 10x
x= 50/10 = 5
Réponse:
2x - 5 = 5
2x = 5 + 5
2x = 10
x = 10/2
x = 5
2x + 4 = x + 4
2x - x = 4 - 4
x = 0