Sagot :
Réponse :
Bonjour,
- 3x - 4 = 8 <=> 3x = 12 <=> x = 12/3 = 4
- 5x = 35 <=> x = 35/5 = 7
- x - 7 = 20 <=> x = 27
- 4x + 4 = 28 <=> 4x = 24 <=> x = 24/4 = 6
- 2-2x = 0 <=> 2x = 2 <=> x = 2/2 = 1
- 5x + 2 = 3 x - 6 <=> 2x = -8 <=> x = -8/2 = -4
Bonne journée
Réponse:
3x4-4=8
5x7=35
3x9-8=20
4x6+4=28
2-2x0=0
par contre jsp pour le dernier