Mathématiques

Question

1)5x-3=3x+8

2)2(2x+9)=5(x-1)

Merci de m'aider.​

2 Réponse

  • Bjr,

    5x - 3 = 3x + 8

    5x - 3x = 8 + 3

    2x = 11

    x = 11/2

    4x + 18 = 5x - 5

    - x = - 23

    x = 23

  • Bonsoir

    1)5x-3=3x+8

    5x - 3x = 8 + 3

    2x = 11

    x = 11/2

    2)2(2x+9)=5(x-1)

    4x + 18 = 5x - 5

    4x - 5x = - 5 - 18

    - x = - 23

    x= 23.

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