Bonjour pouvez vous m’aidez Mercii( le numéro 3)

bonjour

11x - (x+1) = x - 1

11x - x - 1 = x - 1

10x - x = - 1 + 1

x = 0

-6x + 7 - x = x + 2

-6x - x - x = 2 - 7

-8x = -5

x = -5/ (-8) = 5/8

3/7x = 0 => x =0

5/6x - 2 = 0

5/6x = 2

x = 2 / 5/6 = 2 x 6/5 = 12/5

(2x-3) / 7 = 1

2x-3 = 1 x 7

2x = 7 + 3

x=5

:)