Aidez moi svp j’ai besoin d’aider Exercice 1 Résoudre les équations suivantes : 2x + 5 = 3(2x - 3) x+ 5 = 4 - 2x J 2x + 5 = 2x - 5 3b+6=-10

Bonjour,

2x+5 = 6x -9

5+9 = 6x -2x

14 = 4x

4x = 14

x= 14/4

x= 7/2

x = 3,5

2x+5 = 2x-5

2x-2x = -5-5

0= 10

impossible

x+5 = 4-2x

x+2x = 4-5

3x = -1

x= -1/3

-3b +6 =-10

-3b = -10-6

-3b = -16

b = -16/-3 = 16/3

Bonjour,

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

2x + 5 = 3 * 2x + 3 * (-3)

2x + 5 = 6x - 9

2x - 6x = - 9 - 5

- 4x = - 14

x = 14/4 = 7/2

x+ 5 = 4 - 2x

x + 2x = 4 - 5

3x = - 1

x = -1/3

2x + 5 = 2x - 5

2x - 2x = - 5 - 5

0 = - 10

- 3b+6=-10

- 3b = - 10 - 6

- 3b = -16

b = 16/3

Bonne journée.