Bonsoir, Trouver x : −6−4(6x−4)=(2−x)+5x Merci

Bonjour

−6−4(6x−4)=(2−x)+5x

-6-24x+ 16 = 2-x+ 5x

-24x + 10 = 4x + 2

-24x-4x = 2-10

-28x = -8

x = -8/-28

x = 2/7

Réponse :

Bonsoir,

-6-4*(6x-4) = (2-x)+5x

-6-4*(6x)-4*(-4) = 2-x+5x

-6-24x+16 = 4x+2

-24x+10 = 4x+2

-24x-4x+10-10 = 4x-4x+2-10

-28x = -8

x = -8/(-28)

x = 8/28

x = (4*2)/(4*7)

x = 2/7