Bonsoir besoin d’aide svp

Réponse :

Bonjour

Explications étape par étape

4x = 16

4x/4 = 16/4

x = 4

5x = 10

5x/5 = 10/5

x = 2

3x = 9

3x/3 = 9/3

x = 3

Tu finis les deux dernières...

2x = 10

6x = 1

3x + 4 = 6

3x + 4 - 4 = 6 - 4

3x = 2

3x/3 = 2/3

x = 2/3

5x + 6 = 11

5x + 6 - 6 = 11 - 6

5x = 5

5x/5 = 5/5

x = 1

4x - 5 = 7

4x - 5 + 5 = 7 + 5

4x = 12

4x/4 = 12/4

x = 3

Tu finis...

6x + 1 = -5

3x - 5 = -2

Bonjour,

4x = 16

x = 16/4

x = 4

5x = 10

x = 10/5

x = 2

3x = 9

x = 9/3

x = 3

2x = 10

x = 10/2

x = 5

6x = 1

x = 1/6

3x + 4 = 6

3x = 6 - 4

3x = 2

x = 2/3

5w + 6 = 11

5x = 11 - 6

5x = 5

x = 5/5

x = 1

4x - 5 = 7

4x = 7 + 5

4x = 12

x = 12/4

x = 3

6x + 1 = - 5

6x = - 5 - 1

6x = - 6

x = - 6/6

x = - 1

3x - 5 = - 2

3x = - 2 + 5

3x = 3

x = 3/3

x = 1