Bonjour

Résoudre en donnant toutes les étapes :

1) 2x-12=-3x+13

2x + 3x = 13 + 12

5x = 15

x = 15/5

x = 3

2) -7x-11=-3x+-17

- 7x + 3x = - 17 + 11

- 4x = - 6

x = 6/4

x = 3/2.

bonjour

2 x - 12 =  - 3 x + 13

2 x + 3 x = 13 + 12

5 x = 25

x = 5

-  7 x - 11 = - 3 x - 17

- 7 x + 3 x = - 17 + 11

- 4 x = - 6

x = = 3 /2