Mathématiques

Question

bonjour petites  équations merci

7(3-x)+5x - 8=11


8x-5(3-3x)=2x-(10+4x)-5


x-4 +3x + 2 = 1 - x

 3        9            6



-2(5x+3)-2(7-x)=8+3x


2/3 x + 2= 4/9 x - 1


4x+2 - 3+x = x+ x-4

   5        4             2


1 Réponse

  • Salut :)

    7(3-x)+5x - 8=11
    13-2 x = 11
    x=1

    8x-5(3-3x)=2x-(10+4x)-5
    23 x-15 = -2 x-15
    x=0

    (x-4/3)+(3x+2/9)=(1-x/6)
    4 x-10/9 = 1-x/6
    x = 38/75

    -2(5x+3)-2(7-x)=8+3x
    -8 x-20 = 3 x+8
    x = -28/11

    2/3 x + 2= 4/9 x - 1
    (2 (x+3))/3 = 1/9 (4 x-9)
    x = -27/2

    (4x+2/5)-(3+x/4)=(x+x-4/2)
    (15 x)/4-13/5 = 2 x-2
    x = 12/35

    Bye Bye ^_^







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