Réponse :

1) 10-3 = 7x2 = 14 +6 = 20-20 = 0

   -4-3= -7x2 = -14 + 6 =- 8 -8=0

2) cet ensorcelement semble mettre tout les nombres a 0 .

3)X-3= 2X-6 = 2X-6+6 = 2X- 2X = 0

Bonjour,

10

10-3 =7

7*2 = 14

14+6 =20

20-2*10 = 0

-4

-4-3 =-7

-7*2 = -14

-14+6 = -8

-8-(2*-4) = 0

2)

On obtient 0

3)

x

x-3

(x-3)*2 =  2x-6

2x-6 +6 = 2x
2x-2x = 0