Mathématiques

Question

Bonsoir svp vous pouvez m’aider svp je comprend rien?

1 Résous chaque équation.
d. - 6x - 5 = 0
a. 8x + 3 = 0
b. 2x - 9 = 0
c. 49 - 7x = 0
h. 20 - 4x = - 4
e. 5x + 12 = 3
f. 10x + 1 = - 7
g. 9x - 2 = 6​

1 Réponse

  • Bonjour

    1 Résous chaque équation.

    d. - 6x - 5 = 0

    - 6x = 5

    x = - 5/6

    a. 8x + 3 = 0

    8x = - 3

    x = - 3/8

    b. 2x - 9 = 0

    2x = 9

    x = 9/2

    c. 49 - 7x = 0

    - 7x = - 49

    x = 49/7

    x = 7

    h. 20 - 4x = - 4

    - 4x = - 4 - 20

    - 4x = - 24

    x = 24/4

    x = 6

    e. 5x + 12 = 3

    5x = 3 - 12

    5x = - 9

    x = - 9/5

    f. 10x + 1 = - 7

    10x = - 7 - 1

    10x = - 8

    x = - 8/10

    x = - 4/5

    g. 9x - 2 = 6​

    9x = 6 + 2

    9x = 8

    x = 8/9.

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