Mathématiques

Question

a. 5x = 3x + 3
3
b. 8x = 12x + 4
c. 4 – 7y = 10y
=
d. 7x + 1 = - 4 - X
e. 2 + 3x = 7 - 3x


Svp j'arrive pas a trouver les résultats

1 Réponse

  • Bonsoir,

    a. 5x = 3x + 3

    5x-3x = 3

    2x= 3

    x= 3/2 = 1,5

    b. 8x = 12x + 4

    -4 = 12x -8x

    -4 = 4x

    x= -4/4 = -1

    c. 4 – 7y = 10y

    4 = 10y +7y

    4 = 17y

    y = 4/17

    d. 7x + 1 = - 4 - x

    7x+x = -4 -1

    8x =-5

    x= -5/8

    e. 2 + 3x = 7 - 3x

    3x+3x = 7 -2

    6x = 5

    x= 5/6

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