Mathématiques

Question

Bjr Resoudre chaque équation:

4x+3x=49

-2x+7x=36

2 Réponse

  • 4x+3x = 49
    7x = 49
    x = 49/7 = 7

    -2x+7x = 36
    5x = 36
    x = 36/5 = 7,2
  •  4 x + 3 x = 49
     7 x = 49
     x = 49/7
     x = 7

    -2 x + 7 x = 36
     5 x = 36
     x = 36/5

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