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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

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