Mathématiques

Question

-3(3x+1)-(2+x)=0
4(x-5)+7(3-2x)=-5(3x+1)


1 Réponse

  • -3(3x+1)-(2+x)=0
    -9x - 3 - 2 - x =0
    -10x - 5 = 0
    -10x = 5
    x = 5/-10
    x = -1/2

    4(x-5)+7(3-2x)=-5(3x+1)
    4x - 20 + 21 - 14x = - 15x - 5
    4x -14x + 15x = - 5 - 21 + 20
    5x = -6
    x = -6/5

Autres questions